Counter target spell. If that spell is countered this way, put it on the bottom of its owner's library instead of into that player's graveyard. Put Spell Crumple on the bottom of its owner's library.
Enchant creatureEnchanted creature gets +2/+2, has intimidate, and can't attack you or planeswalkers you control. (A creature with intimidate can't be blocked except by artifact creatures and/or creatures that share a color with it.)
Rat offering (You may cast this spell any time you could cast an instant by sacrificing a Rat and paying the difference in mana costs between this and the sacrificed Rat. Mana cost includes color.)Whenever a permanent is put into an opponent's graveyard, that player loses 1 life.
Punishing Fire deals 2 damage to any target.Whenever an opponent gains life, you may pay . If you do, return Punishing Fire from your graveyard to your hand.
Multikicker (You may pay an additional any number of times as you cast this spell.)FlyingWhen Lightkeeper of Emeria enters, you gain 2 life for each time it was kicked.
Morph (You may cast this card face down as a 2/2 creature for . Turn it face up any time for its morph cost.)When Chromeshell Crab is turned face up, you may exchange control of target creature you control and target creature an opponent controls.
Sulfurous Blast deals 2 damage to each creature and each player. If you cast this spell during your main phase, Sulfurous Blast deals 3 damage to each creature and each player instead.
Radiance — Choose a color. Target creature and each other creature that shares a color with it gain protection from the chosen color until end of turn.