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Whenever one or more creatures you control deal combat damage to a player, investigate. (Create a Clue token. It's an artifact with "{2}, Sacrifice...

Flying Whenever Nightveil Sprite attacks, surveil 1. (Look at the top card of your library. You may put that card into your graveyard.)

Affinity for tokens (This spell costs {1} less to cast for each token you control.) Whenever a token enters the battlefield under your control, tap...

Steam Blast deals 2 damage to each creature and each player.

Flying Whenever you investigate for the first time each turn, investigate an additional time.

When this creature enters, sacrifice a creature. {B}: Regenerate this creature.

{1}{W}: Prevent all combat damage that would be dealt this turn by target attacking creature with flying.

When Polygraph Orb enters the battlefield, look at the top four cards of your library. Put two of them into your hand and the rest into your gravey...

Enchant creature Enchanted creature gets +2/+2 and has flying. {R}: Enchanted creature gets +1/+0 until end of turn.

First strike {1}{B}: Regenerate this creature.

Sacrifice this creature: The next time a source of your choice would deal damage to any target this turn, prevent that damage.

Creatures you control have "Whenever this creature becomes blocked by a creature, this creature gets +1/+1 until end of turn."

When this creature enters, add {B}{B}{B}.

Whenever a player casts an enchantment spell, counter it.

Enchant creature At the beginning of the upkeep of enchanted creature's controller, this Aura deals 2 damage to that player.

X target blocked creatures assign their combat damage this turn as though they weren't blocked.

Fear (This creature can't be blocked except by artifact creatures and/or black creatures.) Whenever this creature deals damage to a player, that pl...

Visit — Return a creature you don't control with the lowest toughness among creatures you don't control to its owner's hand. (If multiple creatures...

Visit — Choose one. • Create a 1/1 red Balloon creature token with flying. • Sacrifice a Balloon. If you do, target creature gains flying until end...

Visit — Choose one. • Create a 1/1 red Balloon creature token with flying. • Sacrifice a Balloon. If you do, target creature gains flying until end...

Visit — Choose one. • Create a 1/1 red Balloon creature token with flying. • Sacrifice a Balloon. If you do, target creature gains flying until end...

Visit — Choose one. • Create a 1/1 red Balloon creature token with flying. • Sacrifice a Balloon. If you do, target creature gains flying until end...

Jagged Lightning deals 3 damage to each of two target creatures.

Until end of turn, target creature loses all abilities and has base power and toughness 0/1.