Brainstorm

Draw three cards, then put two cards from your hand on top of your library in any order.

Daze

You may return an Island you control to its owner's hand rather than pay this spell's mana cost.
Counter target spell unless its controller pays {1}.

Remove Soul

Prodigal Sorcerer

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

Force of Will

You may pay 1 life and exile a blue card from your hand rather than pay this spell's mana cost.
Counter target spell.

Snow-Covered Island

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.

Clone

You may have Clone enter the battlefield as a copy of any creature on the battlefield.

Disrupt

Counter target instant or sorcery spell unless its controller pays {1}.
Draw a card.

Counterspell

Boomerang

Return target permanent to its owner's hand.

Snap

Return target creature to its owner's hand. Untap up to two lands.