Power Sink

Counter target spell unless its controller pays {X}. If that player doesn't, they tap all lands with mana abilities they control and lose all unspent mana.

Control Magic

Enchant creature
You control enchanted creature.

Birds of Paradise

Spell Blast

Counter target spell with mana value X. (For example, if that spell's mana cost is {3}{U}{U}, X is 5.)

Sol Ring

Giant Growth

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

Ice Storm

Pendelhaven

{T}: Add {G}.
{T}: Target 1/1 creature gets +1/+2 until end of turn.

Regrowth

Return target card from your graveyard to your hand.

Forest

Berserk

Cast this spell only before the combat damage step.
Target creature gains trample and gets +X/+0 until end of turn, where X is its power. At the beginning of the next end step, destroy that creature if it attacked this turn.

Braingeyser

Psionic Blast

Psionic Blast deals 4 damage to any target and 2 damage to you.

Island

Llanowar Elves

Prodigal Sorcerer

{T}: Prodigal Sorcerer deals 1 damage to any target.

Mahamoti Djinn

Flying (This creature can't be blocked except by creatures with flying or reach.)