MTG

When a creature is put into an opponent's graveyard from the battlefield, if Lurking Skirge is an enchantment, Lurking Skirge becomes a 3/2 Phyrexi...

Shroud (This creature can't be the target of spells or abilities.) Multani, Maro-Sorcerer's power and toughness are each equal to the total number...

Sacrifice any number of creatures. Last-Ditch Effort deals that much damage to any target.

{1}{U}, {T}: Put target green creature on top of its owner's library.

At the beginning of your upkeep, if there are four or more creatures on the battlefield, sacrifice Planar Collapse and destroy all creatures. They ...

Creatures you control have flying.

Other enchantments have "At the beginning of your upkeep, sacrifice this enchantment unless you pay {2}."

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

If Viashino Bey attacks, all creatures you control attack if able.

Whenever Goblin Medics becomes tapped, it deals 1 damage to any target.

Flying {T}, Sacrifice Phyrexian Debaser: Target creature gets -2/-2 until end of turn.

Flying {B}: Regenerate Fog of Gnats.

{T}: Target creature loses your choice of flying, first strike, or trample until end of turn.

When an opponent casts a creature spell, if Opal Champion is an enchantment, Opal Champion becomes a 3/3 Knight creature with first strike.

Echo {4} (At the beginning of your upkeep, if this came under your control since the beginning of your last upkeep, sacrifice it unless you pay its...

When an opponent casts an instant spell, if Hidden Gibbons is an enchantment, Hidden Gibbons becomes a 4/4 Ape creature.

Shuffle all creature cards from target player's graveyard into that player's library. Cycling {2} ({2}, Discard this card: Draw a card.)

Destroy target creature with power 4 or greater. Cycling {2} ({2}, Discard this card: Draw a card.)

Echo {4} (At the beginning of your upkeep, if this came under your control since the beginning of your last upkeep, sacrifice it unless you pay its...

At the beginning of each opponent's upkeep, Iron Maiden deals X damage to that player, where X is the number of cards in their hand minus 4.

Flying, protection from red

{4}, {T}: You may put a creature card from your hand onto the battlefield.

At the beginning of your upkeep, each opponent loses 1 life. You gain life equal to the life lost this way.

Flying, protection from black Echo {3}{W}{W} (At the beginning of your upkeep, if this came under your control since the beginning of your last upk...