Island

Blightning

Blightning deals 3 damage to target player or planeswalker. That player or that planeswalker's controller discards two cards.

When Archaeomancer enters, return target instant or sorcery card from your graveyard to your hand.

Electrolyze deals 2 damage divided as you choose among one or two targets.
Draw a card.

Defender
When Mnemonic Wall enters, you may return target instant or sorcery card from your graveyard to your hand.

Lonely Sandbar enters tapped.
{T}: Add {U}.
Cycling {U} ({U}, Discard this card: Draw a card.)

Lightning Bolt deals 3 damage to any target.

Dragonskull Summit enters tapped unless you control a Swamp or a Mountain.
{T}: Add {B} or {R}.

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

At the beginning of your end step, you may exile target creature you control, then return that card to the battlefield under your control.

Sulfur Falls enters tapped unless you control an Island or a Mountain.
{T}: Add {U} or {R}.

Drowned Catacomb enters tapped unless you control an Island or a Swamp.
{T}: Add {U} or {B}.