Psionic Spells -- When Aberrant Mind Sorcerer enters the battlefield, choose target instant or sorcery card in your graveyard, then roll a d20.

1--9 | You may put that card on top of your library.

10--20 | Return that card to your hand.

For each attacking creature, its owner puts it on the top or bottom of their library.

Roll two d8 and choose one result. Draw cards equal to that result. Then you may cast an instant or sorcery spell with mana value less than or equal to the other result from your hand without paying its mana cost.

Search the Room -- {5}{U}: Roll a d20.

1--9 | Draw a card.

10--20 | Look at the top three cards of your library. Put one of them into your hand and the rest on the bottom of your library in any order.

{T}: Add one mana of any color in your commander's color identity.

{T}: Add {C}.

Basic landcycling {1} ({1}, Discard this card: Search your library for a basic land card, reveal it, put it into your hand, then shuffle.)

(Gain the next level as a sorcery to add its ability.)

If you would roll one or more dice, instead roll that many dice plus one and ignore the lowest roll.

{1}{R}: Level 2

Whenever you roll one or more dice, target creature you control gets +2/+0 and gains menace until end of turn.

{2}{R}: Level 3

Creatures you control have haste.

Cast this spell only before combat or during combat before blockers are declared.

Roll two d20 and ignore the lower roll.

1--14 | Choose any number of creatures. They block this turn if able.

15--20 | You choose which creatures block this turn and how those creatures block.

Draw three cards, then put two cards from your hand on top of your library in any order.

Whenever you roll one or more dice, Brazen Dwarf deals 1 damage to each opponent.

{1}, {T}: Roll a d4 and create a number of Treasure tokens equal to the result. The player to your right gains control of Bucknard's Everfull Purse.

Counter target spell.

Flying, haste

Chaos Dragon attacks each combat if able.

At the beginning of combat on your turn, each player rolls a d20. If one or more opponents had the highest result, Chaos Dragon can't attack those players or planeswalkers they control this combat.

The owner of target permanent shuffles it into their library, then reveals the top card of their library. If it's a permanent card, they put it onto the battlefield.

{6}, Roll a d8: Monstrosity X, where X is the result. (If this creature isn't monstrous, put X +1/+1 counters on it and it becomes monstrous.)

Berserk -- When Clay Golem becomes monstrous, destroy target permanent.

{T}: Add one mana of any color in your commander's color identity.

{T}, Remove a component counter from Component Pouch: Add two mana of different colors.

{T}: Roll a d20.

1--9 | Put a component counter on Component Pouch.

10--20 | Put two component counters on Component Pouch.

Roll a d20.

1--9 | Tap all creatures your opponents control.

10--19 | Tap all creatures your opponents control. Those creatures don't untap during their controllers' next untap steps.

20 | Tap all creatures your opponents control. Those creatures don't untap during their controllers' next untap steps. Until your next turn, creatures your opponents control enter the battlefield tapped.

When Confounding Conundrum enters the battlefield, draw a card.

Whenever a land enters the battlefield under an opponent's control, if that player had another land enter the battlefield under their control this turn, they return a land they control to its owner's hand.

Roll a d20.

1--9 | Draw two cards.

10--19 | Scry 2, then draw two cards.

20 | Scry 3, then draw three cards.

Counter target spell.

Target creature gains double strike until end of turn.

When you roll a natural 20, return Critical Hit from your graveyard to your hand. (A natural 20 is a roll that displays 20 on the die.)

{T}: Add {C}.

{1}, {T}, Sacrifice Cryptic Caves: Draw a card. Activate only if you control five or more lands.

Whenever Delina, Wild Mage attacks, choose target creature you control, then roll a d20.

1--14 | Create a tapped and attacking token that's a copy of that creature, except it's not legendary and it has "At end of combat, exile this creature."

15--20 | Create one of those tokens. You may roll again.

Roll a d20 and add the number of cards in your hand.

1--14 | Draw X cards.

15+ | Scry X, then draw X cards.

Flying

When Djinni Windseer enters the battlefield, roll a d20.

1--9 | Scry 1.

10--19 | Scry 2.

20 | Scry 3.

Ebony Fly enters the battlefield tapped.

{T}: Add {C}.

{4}: Roll a d6. Until end of turn, you may have Ebony Fly become an X/X Insect artifact creature with flying, where X is the result.

Whenever Ebony Fly attacks, another target attacking creature gains flying until end of turn.

{T}, Sacrifice Evolving Wilds: Search your library for a basic land card, put it onto the battlefield tapped, then shuffle.

Flash

Flying

Whenever you draw your second card each turn, put a +1/+1 counter on Faerie Vandal.

Farideh's Fireball deals 5 damage to target creature or planeswalker. Roll a d20.

1--9 | Farideh's Fireball deals 2 damage to each player.

10--20 | Farideh's Fireball deals 2 damage to each opponent.

Dark One's Own Luck -- Whenever you roll one or more dice, Farideh, Devil's Chosen gains flying and menace until end of turn. If any of those results was 10 or higher, draw a card.

Whenever you roll one or more dice, create a 1/1 blue Faerie Dragon creature token with flying.

Fire Diamond enters the battlefield tapped.

{T}: Add {R}.

Exile target spell, then roll a d20 and add that spell's mana value.

1--14 | You may cast the exiled card for as long as it remains exiled, and you may spend mana as though it were mana of any color to cast that spell.

15+ | You may cast the exiled card without paying its mana cost for as long as it remains exiled.

Equipped creature gets +1/+0 and has trample.

Equip {1}{R}

When Goblin Morningstar enters the battlefield, roll a d20.

1--9 | Create a 1/1 red Goblin creature token.

10--20 | Create a 1/1 red Goblin creature token, then attach Goblin Morningstar to it.

Highland Lake enters the battlefield tapped.

{T}: Add {U} or {R}.

Flying

When Hoarding Dragon enters the battlefield, you may search your library for an artifact card, exile it, then shuffle.

When Hoarding Dragon dies, you may put the exiled card into its owner's hand.

Whenever you draw your second card each turn, Irencrag Pyromancer deals 3 damage to any target.

Whenever Iron Mastiff attacks, roll a d20 for each player being attacked and ignore all but the highest roll.

1--9 | Iron Mastiff deals damage equal to its power to you.

10--19 | Iron Mastiff deals damage equal to its power to defending player.

20 | Iron Mastiff deals damage equal to its power to each opponent.

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

Choose one --

• Counter target noncreature spell unless its controller pays {2}.

• Izzet Charm deals 2 damage to target creature.

• Draw two cards, then discard two cards.

Izzet Guildgate enters the battlefield tapped.

{T}: Add {U} or {R}.

{1}, {T}: Add {U}{R}.

Replicate {U} (When you cast this spell, copy it for each time you paid its replicate cost. You may choose new targets for the copies.)

Counter target spell unless its controller pays {2}.

({T}: Add {R}.)

({T}: Add {R}.)

({T}: Add {R}.)

({T}: Add {R}.)

({T}: Add {R}.)

({T}: Add {R}.)

({T}: Add {R}.)

({T}: Add {R}.)

({T}: Add {R}.)

({T}: Add {R}.)

({T}: Add {R}.)

({T}: Add {R}.)

Counter target noncreature spell.

Focus Beam -- At the beginning of your upkeep, roll a d4. Scry X, where X is the result.

Perfect Illumination -- Whenever you roll a die's highest natural result, draw a card.

This spell can't be countered.

Flying

Whenever you draw a card, Niv-Mizzet, Parun deals 1 damage to any target.

Whenever a player casts an instant or sorcery spell, you draw a card.

Flying

Whenever you draw a card, Niv-Mizzet, the Firemind deals 1 damage to any target.

{T}: Draw a card.

Scry 1.

Draw a card.

Flying

Grant an Advantage -- If you would roll one or more dice, instead roll that many dice plus one and ignore the lowest roll.

Choose target creature an opponent controls, then roll a d20.

1--9 | Return it to its owner's hand.

10--19 | Its owner puts it on the top or bottom of their library.

20 | Gain control of it until the end of your next turn.

Roll two d12 and choose one result. Reckless Endeavor deals damage equal to that result to each creature. Then create a number of Treasure tokens equal to the other result.

You have no maximum hand size.

{T}: Add {C}.

As an additional cost to cast this spell, discard a card.

Draw two cards and create a Treasure token. (It's an artifact with "{T}, Sacrifice this artifact: Add one mana of any color.")

{T}: Add {C}.

{T}: Add {U} or {R}. Shivan Reef deals 1 damage to you.

Sky Diamond enters the battlefield tapped.

{T}: Add {U}.

{T}: Add {C}{C}.

Flash

{5}, {T}, Sacrifice Spiked Pit Trap: Choose target creature, then roll a d20.

1--9 | Spiked Pit Trap deals 5 damage to that creature.

10--20 | Spiked Pit Trap deals 5 damage to that creature. Create a Treasure token.

Whenever equipped creature attacks, put a +1/+1 counter on it.

Whenever equipped creature deals combat damage, roll a d12. If the result is greater than the damage dealt or the result is 12, double the number of +1/+1 counters on that creature.

Equip {2} ({2}: Attach to target creature you control. Equip only as a sorcery.)

{T}: Add {C}.

{T}: Add {U} or {R}. Talisman of Creativity deals 1 damage to you.

{T}, Sacrifice Terramorphic Expanse: Search your library for a basic land card, put it onto the battlefield tapped, then shuffle.

{2}, {T}: Roll a d20 and subtract the number of cards in your hand. If the result is 0 or less, discard your hand.

1--9 | Return a card at random from your graveyard to your hand.

10--19 | Draw two cards.

20 | Put a creature card from any graveyard onto the battlefield under your control. When that creature dies, its owner loses the game.

Flying

Whenever you draw a card, create a 1/1 blue and red Insect creature token with flying and haste.

{2}{U}{R}: Draw a card, then discard a card.

When The Locust God dies, return it to its owner's hand at the beginning of the next end step.

You have no maximum hand size.

{T}: Add {C}.

As an additional cost to cast this spell, discard a card.

Draw two cards.

Roll a d20.

1--9 | Thunderwave deals 3 damage to each creature.

10--19 | You may choose a creature. Thunderwave deals 3 damage to each creature not chosen this way.

20 | Thunderwave deals 6 damage to each creature your opponents control.

As an additional cost to cast this spell, discard a card.

Draw two cards.

{4}, Sacrifice Treasure Chest: Roll a d20.

1 | Trapped! -- You lose 3 life.

2--9 | Create five Treasure tokens.

10--19 | You gain 3 life and draw three cards.

20 | Search your library for a card. If it's an artifact card, you may put it onto the battlefield. Otherwise, put that card into your hand. Then shuffle.

{T}: Add {C}.

{5}, {T}, Exile Underdark Rift: Roll a d10. Put target artifact, creature, or planeswalker into its owner's library just beneath the top X cards of that library, where X is the result. Activate only as a sorcery.

Whenever you roll one or more dice, put a number of charge counters on Vexing Puzzlebox equal to the result.

{T}: Add one mana of any color. Roll a d20.

{T}, Remove 100 charge counters from Vexing Puzzlebox: Search your library for an artifact card, put that card onto the battlefield, then shuffle.

{4}, {T}: Roll a d20. Each opponent exiles cards from the top of their library until they exile an instant or sorcery card, then shuffles the rest into their library. You may cast up to X instant and/or sorcery spells from among cards exiled this way without paying their mana costs.

1--9 | X is one.

10--19 | X is two.

20 | X is three.

(Gain the next level as a sorcery to add its ability.)

You have no maximum hand size.

{2}{U}: Level 2

When this Class becomes level 2, draw two cards.

{4}{U}: Level 3

Whenever you draw a card, put a +1/+1 counter on target creature you control.

{T}: Exile target instant or sorcery card from a graveyard. Roll a d20. Activate only as a sorcery.

1--9 | Copy that card. You may cast the copy.

10--19 | Copy that card. You may cast the copy by paying {1} rather than paying its mana cost.

20 | Copy each card exiled with Wizard's Spellbook. You may cast any number of the copies without paying their mana costs.

Choose target spell or ability with one or more targets. Roll a d20 and add the greatest power among creatures you control.

1--14 | You may choose new targets for that spell or ability.

15+ | You may choose new targets for that spell or ability. Then copy it. You may choose new targets for the copy.

If you would roll one or more dice, instead roll that many dice plus one and ignore the lowest roll.

Whenever you roll one or more dice, put a +1/+1 counter on Wyll, Blade of Frontiers.

Choose a Background (You can have a Background as a second commander.)

Choose one --

• Fight the Current -- Return target nonland permanent to its owner's hand.

• Find a Crossing -- Target creature gets +1/+0 until end of turn and can't be blocked this turn.

Choose one --

• Foil Their Scheme -- Counter target spell.

• Learn Their Secrets -- Draw two cards, then discard two cards.