Standard MTG sets

When The Earth King enters, create a 4/4 green Bear creature token. Whenever one or more creatures you control with power 4 or greater attack, sear...

Haste Whenever another Ally you control enters, put a +1/+1 counter on that creature and it gains haste until end of turn.

Flying, firebending 2 When Ran and Shaw enter, if you cast them and there are three or more Dragon and/or Lesson cards in your graveyard, create a ...

Firebending 1 (Whenever this creature attacks, add {R}. This mana lasts until end of combat.) {1}{R}{R}: Put a +1/+1 counter on this creature.

Reach Whenever Spider-Gwen becomes tapped, you may discard a card. If you do, draw a card.

When Tombstone enters, return target Villain card from your graveyard to your hand. Villain spells you cast cost {1} less to cast.

Discard a card: This creature gets +1/+0 and gains menace until end of turn. Activate only as a sorcery. (It can't be blocked except by two or more...

When Eddie Brock enters, return target creature card with mana value 1 or less from your graveyard to the battlefield. {3}{B}{R}{G}: Transform Eddi...

Whenever you cast a blue spell, if Hydro-Man is a creature, he gets +1/+1 until end of turn. At the beginning of your end step, untap Hydro-Man. Un...

At the beginning of your upkeep, discard a card, then create a Treasure token. Mayhem {2}{B/R} (You may cast this card from your graveyard for {2}{...

You may have Chameleon enter as a copy of a creature you control, except his name is Chameleon, Master of Disguise. Mayhem {2}{U} (You may cast thi...

Flying You don't lose unspent red mana as steps and phases end. Whenever you cast an instant or sorcery spell, add {R}. When Electro leaves the bat...

Web-slinging {1}{G}{W} (You may cast this spell for {1}{G}{W} if you also return a tapped creature you control to its owner's hand.) Whenever you c...

When this creature enters, put a +1/+1 counter on each other creature you control.

Web-slinging {2}{W} (You may cast this spell for {2}{W} if you also return a tapped creature you control to its owner's hand.) At the beginning of ...

Double strike Fear Gas — Wraith can't be blocked.

When this creature enters, put a +1/+1 counter on each other creature you control.

Whenever this creature deals combat damage to a player, look at that many cards from the top of your library. Put one of them into your hand and th...

During your turn, Sun-Spider has flying. When Sun-Spider enters, search your library for an Aura or Equipment card, reveal it, put it into your han...

Whenever a creature an opponent controls dies, put a number of +1/+1 counters on Vincent Valentine equal to that creature's power. Whenever Vincent...

Whenever an artifact you control enters, surveil 1. At the beginning of your end step, if you control four or more artifacts, return target creatur...

Vigilance, lifelink Whenever you gain life, put a +1/+1 counter on each Cleric you control.

Menace (This creature can't be blocked except by two or more creatures.) {1}{B}: Ravine Raider gets +1/+1 until end of turn.

When Joshua enters, discard up to two cards, then draw that many cards. {3}{R}{W}, {T}: Exile Joshua, then return it to the battlefield transformed...