Frenetic Sliver [Planar Chaos]Set: Planar Chaos Type: Creature Sliver Rarity: Uncommon Cost: {1}{U}{R} All Slivers have "{0}: If this permanent is on the battlefield, flip a coin. If you win the flip, exile this permanent and return it to the battlefield under its owner's control at the beginning of the next end step. If you lose the flip, sacrifice it."

you may pay {W/B}

if Opal Titan is an enchantment

You may play an additional land on each of your turns

Set: Oath of the Gatewatch Prerelease Promos Type: Creature — Eldrazi Rarity: Rare Cost: {2}{C} ({C} represents colorless mana

Set: Commander 2014 Type: Artifact Rarity: Rare Cost: {4} {1}

Reinforce 1—{1}{W} ({1}{W}

any sword will do

Set: Champions of Kamigawa Type: Legendary Creature — Spirit Rarity: Rare Cost: {2}{G}{G} Whenever you cast a Spirit or Arcane spell

Set: Worldwake Promos Type: Creature — Human Soldier Ally Rarity: Rare Cost: {W} Whenever Hada Freeblade or another Ally enters the battlefield under your control

creatures can't block unless their controller pays {X} for each blocking creature they control

Set: World Championships 2007 Type: Special Energy Rarity: Rare

Set: EX: Dragon Type: Fire Rarity: Holo Rare Retreat cost: Colorless