Island

Careful Study

Argivian Restoration

Return target artifact card from your graveyard to the battlefield.

Spire Golem

Affinity for Islands (This spell costs {1} less to cast for each Island you control.)
Flying

Force Spike

Counter target spell unless its controller pays {1}.

Snap

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

Deep Analysis

Target player draws two cards.
Flashback—{1}{U}, Pay 3 life. (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Blue Elemental Blast

Choose one —
• Counter target red spell.
• Destroy target red permanent.

Fade Away

For each creature, its controller sacrifices a permanent of their choice unless they pay {1}.

Mirrorshell Crab

Ward {3} (Whenever this creature becomes the target of a spell or ability an opponent controls, counter it unless that player pays {3}.)
Channel — {2}{U}, Discard Mirrorshell Crab: Counter target spell or ability unless its controller pays {3}.

Think Twice

Draw a card.
Flashback {2}{U} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Counterspell

Foil

You may discard an Island card and another card rather than pay this spell's mana cost.
Counter target spell.

Advanced Stitchwing

Flying
{2}{U}, Discard two cards: Return Advanced Stitchwing from your graveyard to the battlefield tapped.