Destroy all Forests.

Except for creatures named Akron Legionnaire and artifact creatures, creatures you control can't attack.

{G}{W}{U}, {T}: Prevent all combat damage that would be dealt this turn. Activate only before the combat damage step.

Legendary creatures don't untap during their controllers' untap steps.

When Arena of the Ancients enters the battlefield, tap all legendary creatures.

Banding (Any creatures with banding, and up to one without, can attack in a band. Bands are blocked as a group. If any creatures with banding you control are blocking or being blocked by a creature, you divide that creature's combat damage, not its controller, among any of the creatures it's being blocked by or is blocking.)

{T}: Counter target activated ability from an artifact source unless that ability's controller pays {W}. (Mana abilities can't be targeted.)

{2}{B}{R}, {T}: Create a 1/1 black and red Demon creature token named Minor Demon.

Flying

Rampage 2 (Whenever this creature becomes blocked, it gets +2/+2 until end of turn for each creature blocking it beyond the first.)

At the beginning of your upkeep, sacrifice Chromium unless you pay {W}{U}{B}.

First strike

At the beginning of your upkeep, destroy Cosmic Horror unless you pay {3}{B}{B}{B}. If Cosmic Horror is destroyed this way, it deals 7 damage to you.

Elven Riders can't be blocked except by Walls and/or creatures with flying.

{B}, Pay 2 life: Draw a card.

When Hazezon Tamar enters the battlefield, create X 1/1 Sand Warrior creature tokens that are red, green, and white at the beginning of your next upkeep, where X is the number of lands you control at that time.

When Hazezon leaves the battlefield, exile all Sand Warriors.

Destroy all nonblack creatures. Hellfire deals X plus 3 damage to you, where X is the number of creatures that died this way.

{2}, {T}: Prevent all combat damage that would be dealt by target creature this turn.

Whenever an opponent casts a creature spell that doesn't share a color with a creature you control, counter that spell unless that player pays {X}, where X is its mana value.

At the beginning of combat on your turn, you may have Johan gain "Johan can't attack" until end of combat. If you do, attacking doesn't cause creatures you control to tap this combat if Johan is untapped.

Jovial Evil deals X damage to target opponent, where X is twice the number of white creatures that player controls.

Flying

{G}: Killer Bees gets +1/+1 until end of turn.

{2}, {T}: Exile the top card of your library face down.

{0}: Sacrifice Knowledge Vault. If you do, discard your hand, then put all cards exiled with Knowledge Vault into their owner's hand.

When Knowledge Vault leaves the battlefield, put all cards exiled with Knowledge Vault into their owner's graveyard.

Discard a card: If the discarded card was a land card, Land's Edge deals 2 damage to target player or planeswalker. Any player may activate this ability.

Flying

At the beginning of your upkeep, sacrifice Nicol Bolas unless you pay {U}{B}{R}.

Whenever Nicol Bolas deals damage to an opponent, that player discards their hand.

Flying, trample

At the beginning of your upkeep, sacrifice Palladia-Mors unless you pay {R}{G}{W}.

Flying

{G}{G}{G}, {T}: Target creature gains flying until end of turn.

{T}: Psionic Entity deals 2 damage to any target and 3 damage to itself.

Cast this spell only before blockers are declared.

Target creature gains first strike until end of turn. If it doesn't have rampage, that creature gains rampage 2 until end of turn. (Whenever the creature becomes blocked, it gets +2/+2 until end of turn for each creature blocking it beyond the first.)

At the beginning of your upkeep, you may pay {R}{R}{R}. If you don't, tap Rohgahh of Kher Keep and all creatures named Kobolds of Kher Keep, then an opponent gains control of them.

Creatures you control named Kobolds of Kher Keep get +2/+2.

When Stangg enters the battlefield, create Stangg Twin, a legendary 3/4 red and green Human Warrior creature token. Exile that token when Stangg leaves the battlefield. Sacrifice Stangg when that token leaves the battlefield.

Tap target creature. Prevent all combat damage that would be dealt by that creature this turn. It doesn't untap during its controller's next two untap steps.

Cast this spell only during the declare attackers step.

Target creature can't be blocked this turn.

Remove Tempest Efreet from your deck before playing if you're not playing for ante.

{T}, Sacrifice Tempest Efreet: Target opponent may pay 10 life. If that player doesn't, they reveal a card at random from their hand. Exchange ownership of the revealed card and Tempest Efreet. Put the revealed card into your hand and Tempest Efreet from anywhere into that player's graveyard. This change in ownership is permanent.

Typhoon deals damage to each opponent equal to the number of Islands that player controls.

Defender (This creature can't attack.)

{1}: Wall of Opposition gets +1/+0 until end of turn.