Sacrifice a creature: Add {C}{C}.

Enchant creature

Sacrifice an untapped creature: Enchanted creature gets +2/+0 until end of turn.

Sacrifice enchanted creature: Creatures you control get +2/+0 until end of turn.

Target creature gets +3/+3 until end of turn.

Target creature gets +3/+3 until end of turn.

Target creature gets +3/+3 until end of turn.

Creatures you control have "{T}: Add one mana of any color."

Target creature gets +3/+3 and gains trample until end of turn.

{T}: Add one mana of any color that a land an opponent controls could produce.

Put a +1/+1 counter on target creature you control. It gains reach, trample, hexproof, and indestructible until end of turn. (It can't be the target of spells or abilities your opponents control. Damage and effects that say "destroy" don't destroy it.)

Sacrifice a creature: Goblin Bombardment deals 1 damage to any target.

Sacrifice a Goblin: Regenerate target creature.

Instant and sorcery spells you cast cost {1} less to cast.

Whenever a creature you control attacks this turn, create a 1/1 green and white Citizen creature token that's tapped and attacking.

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Aftermath (Cast this spell only from your graveyard. Then exile it.)

Create a Treasure token for each creature you controlled that dealt combat damage to a player this turn.

Tokens you control have "{T}: Add {G}."

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

Whenever a commander you control deals combat damage to an opponent, it deals that much damage to each other opponent.

Partner (You can have two commanders if both have partner.)

Until end of turn, target creature gets +1/+1 for each creature you control and gains trample. It must be blocked this turn if able.

Massive Raid deals damage to any target equal to the number of creatures you control.

Mob Justice deals damage to target player or planeswalker equal to the number of creatures you control.

Target creature gains double strike until end of turn.

Cycling {2} ({2}, Discard this card: Draw a card.)

If an opponent drew three or more cards this turn, you may pay {R} rather than pay this spell's mana cost.

Runeflare Trap deals damage to target player equal to the number of cards in that player's hand.

Whenever a creature enters the battlefield under your control, scry 1. (Look at the top card of your library. You may put that card on the bottom of your library.)

Whenever you cast a spell that targets a creature you control, draw a card.

{U/P}: Change a target of target spell or ability to Spellskite. ({U/P} can be paid with either {U} or 2 life.)

Enchant creature

Enchanted creature gets +1/+1 and has reach. (It can block creatures with flying.)

Totem armor (If enchanted creature would be destroyed, instead remove all damage from it and destroy this Aura.)

Until end of turn, target creature gains trample and gets +X/+X, where X is the number of attacking creatures.

Commander creatures you own have "At the beginning of your upkeep, exile the top card of your library. This creature gets +X/+0 until end of turn, where X is that card's mana value. You may play that card this turn."

Whenever you draw a card, put a loyalty counter on Teferi, Temporal Pilgrim.

0: Draw a card.

-2: Create a 2/2 blue Spirit creature token with vigilance and "Whenever you draw a card, put a +1/+1 counter on this creature."

-12: Target opponent chooses a permanent they control and returns it to its owner's hand. Then they shuffle each nonland permanent they control into its owner's library.

Target creature gets +3/+1 until end of turn. Scry 1. (Look at the top card of your library. You may put that card on the bottom of your library.)

You have no maximum hand size.

At the beginning of your upkeep, if you have exactly thirteen cards in your hand, you win the game.

{3}{U}: Draw a card.

As an additional cost to cast this spell, discard X cards.

Return X target nonland permanents to their owners' hands.

Whenever a creature you control becomes the target of an instant or sorcery spell, that creature gets +3/+3 until end of turn.

+1: Add X mana in any combination of {R} and/or {G}, where X is the number of creatures you control.

0: Create a 2/2 red and green Satyr creature token with haste.

-6: Exile the top seven cards of your library. You may put any number of creature and/or land cards from among them onto the battlefield.