Put a +1/+1 counter on target creature you control if it's legendary. Then it fights target creature an opponent controls. (Each deals damage equal to its power to the other.)

Spells you control can't be countered by blue or black spells this turn, and creatures you control can't be the targets of blue or black spells this turn.

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

Target creature you control gets +2/+2 and gains hexproof until end of turn.

Target creature you control gets +1/+1 and gains hexproof until end of turn. The Ring tempts you. (A creature with hexproof can't be the target of spells or abilities your opponents control.)

Escalate {3} (Pay this cost for each mode chosen beyond the first.)

Choose one or both --

• Target creature gets +3/+0 until end of turn.

• Target creature gains first strike until end of turn.

Target creature gets +3/+1 and gains trample until end of turn.

Target attacking creature gets +3/+3 until end of turn. If it's an artifact creature, it gains trample until end of turn.

Target creature gets +2/+2 and gains trample until end of turn. Untap it.

Choose one --

• Search your library for a basic land card, reveal it, put it into your hand, then shuffle.

• Target creature you control fights target creature you don't control. (Each deals damage equal to its power to the other.)

Until end of turn, target creature gets +1/+1 for each creature you control and gains trample.

Islandwalk (This creature can't be blocked as long as defending player controls an Island.)

Whenever Cold-Eyed Selkie deals combat damage to a player, you may draw that many cards.

Kicker {R} (You may pay an additional {R} as you cast this spell.)

Target creature gets +3/+3 until end of turn. If this spell was kicked, instead that creature gets +4/+4 and gains trample and haste until end of turn.

Target creature gets +4/+2 and gains trample until end of turn.

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

{2}{U}: Daring Saboteur can't be blocked this turn.

Whenever Daring Saboteur deals combat damage to a player, you may draw a card. If you do, discard a card.

Until end of turn, target attacking creature gets +2/+2 and gains trample and "Whenever this creature deals combat damage to a player, destroy target artifact that player controls."

Target creature you control gets +1/+2 until end of turn. It fights target creature you don't control. (Each deals damage equal to its power to the other.)

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

Until end of turn, target creature you control gains trample and gets +X/+0, where X is its power. Sacrifice it at the beginning of the next end step.

Draw a card. Until end of turn, target creature gains trample and gets +1/+0 for each card you've drawn this turn.

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

Target creature gets +3/+0 and gains first strike 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.)

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.)

Until end of turn, target creature gets +1/+1 for each creature you control and gains reach.

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

Target creature gets +3/+2 until end of turn. If it's legendary, it also gains trample until end of turn.

Target creature you control gets +0/+3 and gains hexproof until end of turn. (It can't be the target of spells or abilities your opponents control.)

Permanents you control gain hexproof and indestructible until end of turn.

Until end of turn, target creature gets +3/+3 and gains trample and "Whenever this creature deals combat damage to a player, draw that many cards."

Choose one --

• Target creature gets +4/+0 and gains trample until end of turn.

• Two target creatures each get +2/+0 and gain trample until end of turn.

Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.)

Whenever Jeskai Elder deals combat damage to a player, you may draw a card. If you do, discard a card.

Split second (As long as this spell is on the stack, players can't cast spells or activate abilities that aren't mana abilities.)

Untap target creature. Until end of turn, it gains hexproof, reach, and "Whenever this creature becomes tapped, it deals damage equal to its power to up to one target creature."

Flash

Flying

Whenever Malcolm, Alluring Scoundrel deals combat damage to a player, put a chorus counter on it. Draw a card, then discard a card. If there are four or more chorus counters on Malcolm, you may cast the discarded card without paying its mana cost.

Whenever Mischievous Catgeist deals combat damage to a player, draw a card.

Disturb {2}{U} (You may cast this card from your graveyard transformed for its disturb cost.)

Enchant creature

Enchanted creature has "Whenever this creature deals combat damage to a player, draw a card."

If Catlike Curiosity would be put into a graveyard from anywhere, exile it instead.

Target creature gets +1/+1 and gains indestructible until end of turn. (Damage and effects that say "destroy" don't destroy it.)

Whenever Nine-Tail White Fox deals combat damage to a player, draw a card.

Whenever Ohran Viper deals combat damage to a creature, destroy that creature at end of combat.

Whenever Ohran Viper deals combat damage to a player, you may draw a card.

Put a +1/+1 counter on target creature you control, then it fights target creature you don't control. (Each deals damage equal to its power to the other.)

Adamant -- If at least three green mana was spent to cast this spell, the creature you control gains indestructible until end of turn.

Target creature you control fights another target creature. (Each deals damage equal to its power to the other.)

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

Target creature you control fights target creature you don't control. (Each deals damage equal to its power to the other.)

Target creature you control gets +X/+X until end of turn. Then it fights up to one target creature you don't control.

Target multicolored creature gains double strike until end of turn.

Draw a card.

Target creature you control deals damage equal to its power to target creature you don't control. If the creature you control has trample, excess damage is dealt to that creature's controller instead.

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

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

Target creature you control gets +2/+2 until end of turn. It fights target creature you don't control. (Each deals damage equal to its power to the other.)

Put a +1/+1 counter on target creature you control. It gains hexproof until end of turn. (It can't be the target of spells or abilities your opponents control.)

Whenever Soulknife Spy deals combat damage to a player, draw a card.

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

Target creature gets +3/+1 until end of turn. If it's your turn, that creature gains trample until end of turn. Otherwise, it gains first strike until end of turn.

Split second (As long as this spell is on the stack, players can't cast spells or activate abilities that aren't mana abilities.)

Target creature gets +5/+5 and gains shroud until end of turn. (It can't be the target of spells or abilities.)

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

Target creature gets +2/+0 and gains first strike until end of turn.

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

Target creature gets +3/+0 and gains first strike until end of turn.

Suspicious Stowaway can't be blocked.

Whenever Suspicious Stowaway deals combat damage to a player, draw a card, then discard a card.

Daybound (If a player casts no spells during their own turn, it becomes night next turn.)

Seafaring Werewolf can't be blocked.

Whenever Seafaring Werewolf deals combat damage to a player, draw a card.

Nightbound (If a player casts at least two spells during their own turn, it becomes day next turn.)

Target permanent you control gains hexproof and indestructible until end of turn. You gain 2 life. (A permanent with hexproof and indestructible can't be the target of spells or abilities your opponents control. Damage and effects that say "destroy" don't destroy it.)

Choose one --

• Target creature you control gets +1/+1 until end of turn. It fights target creature you don't control.

• Counter target spell unless its controller pays {3}.

• Creatures with power 3 or less can't block this turn.

Ravenous (This creature enters the battlefield with X +1/+1 counters on it. If X is 5 or more, draw a card when it enters.)

Trample

Spawn Termagants -- Whenever Tervigon deals combat damage to a player, create that many 1/1 green Tyranid creature tokens.

Target creature you control gets +X/+X and gains hexproof and indestructible until end of turn. (A creature with hexproof and indestructible can't be the target of spells or abilities your opponents control. Damage and effects that say "destroy" don't destroy it.)

Target creature gets +4/+4 until end of turn. If it's a Spirit, it gains trample until end of turn.

Target creature gains shroud until end of turn and can't be blocked this turn. (A creature with shroud can't be the target of spells or abilities.)

Splice onto Arcane--Return a blue creature you control to its owner's hand. (As you cast an Arcane spell, you may reveal this card from your hand and pay its splice cost. If you do, add this card's effects to that spell.)

Draw a card if an opponent has cast a blue or black spell this turn. Spells you control can't be countered this turn. You and permanents you control gain hexproof from blue and from black until end of turn. (You and they can't be the targets of blue or black spells or abilities your opponents control.)

Skulk (This creature can't be blocked by creatures with greater power.)

Whenever Wharf Infiltrator deals combat damage to a player, you may draw a card. If you do, discard a card.

Whenever you discard a creature card, you may pay {2}. If you do, create a 3/2 colorless Eldrazi Horror creature token.

Target creature gets +3/+3 and gains reach until end of turn. Untap it.

Target creature gains indestructible until end of turn. (Damage and effects that say "destroy" don't destroy it. If its toughness is 0 or less, it's still put into its owner's graveyard.)

Target creature you control gets +3/+3 and gains hexproof until end of turn. (It can't be the target of spells or abilities your opponents control.)

Flying

Whenever an opponent draws a card except the first one they draw in each of their draw steps, create a 1/1 green Snake creature token.

Whenever Xyris, the Writhing Storm deals combat damage to a player, you and that player each draw that many cards.

Choose one --

• Run and Hide -- Prevent all combat damage that would be dealt to you and creatures you control this turn.

• Gather Your Courage -- Target creature gets +5/+5 and gains indestructible until end of turn. All creatures your opponents control able to block that creature this turn do so.