Brainstorm

T: Target creature you control gains protection from the color of your choice until end of turn.

This creature can't block. Sacrifice a creature: Put a +1/+1 counter on this creature.

This land enters tapped. T: Add G. 1G: This land becomes a 3/3 green Ape creature with trample until end of turn. It's still a land. (It can deal excess combat damage to the player or planeswalker it's attacking.)

Put target creature card from a graveyard onto the battlefield under your control. You lose life equal to that card's mana value.

Draw a card, then draw cards equal to the number of cards named Accumulated Knowledge in all graveyards.

Haste Echo 3R (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 echo cost.) When this creature enters, destroy target land.

Morph 1U (You may cast this card face down as a 2/2 creature for 3. Turn it face up any time for its morph cost.) When this creature is turned face up, change the target of target spell or ability with a single target.

Slice and Dice deals 4 damage to each creature. Cycling 2R (2R, Discard this card: Draw a card.) When you cycle this card, you may have it deal 1 damage to each creature.