Izzet Signet

Desperate Ritual

Add {R}{R}{R}.
Splice onto Arcane {1}{R} (As you cast an Arcane spell, you may reveal this card from your hand and pay its splice cost. If you do, add this card's effects to that spell.)

Izzet Guildmage

({U/R} can be paid with either {U} or {R}.)
{2}{U}: Copy target instant spell you control with mana value 2 or less. You may choose new targets for the copy.
{2}{R}: Copy target sorcery spell you control with mana value 2 or less. You may choose new targets for the copy.

Eye of Nowhere

Return target permanent to its owner's hand.

Lava Spike

Lava Spike deals 3 damage to target player or planeswalker.

Ideas Unbound

Draw three cards. Discard three cards at the beginning of the next end step.

Iron Myr

Silver Myr

Dramatic Reversal

Untap all nonland permanents you control.