Splinter Twin

Enchant creature
Enchanted creature has "{T}: Create a token that's a copy of this creature, except it has haste. Exile that token at the beginning of the next end step."

Counterspell

Stormcarved Coast

This land enters tapped unless you control two or more other lands.
{T}: Add {U} or {R}.

Pestermite

Flash
Flying
When this creature enters, you may tap or untap target permanent.

Thermo-Alchemist

Defender
{T}: This creature deals 1 damage to each opponent.
Whenever you cast an instant or sorcery spell, untap this creature.

Brainstorm

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

Island

Scry 1. (Look at the top card of your library. You may put that card on the bottom.)
Draw a card.

Negate

Firebrand Archer

Whenever you cast a noncreature spell, this creature deals 1 damage to each opponent.

Mountain

Mountain // Mountain

Long-Term Plans

Search your library for a card, then shuffle and put that card third from the top.

Molten Tributary

({T}: Add {U} or {R}.)
This land enters tapped.

Shivan Reef

{T}: Add {C}.
{T}: Add {U} or {R}. This land deals 1 damage to you.