Voidslime [Ravnica Allegiance Guild Kit]Set: Ravnica Allegiance Guild Kit Type: Instant Rarity: Rare Cost: {G}{U}{U} Counter target spell, activated ability, or triggered ability. (Mana abilities can't be targeted.) "It is technically an ooze, but its life span measures only seconds. In that short time, its appetite for magic is extraordinary." Simic research notes

Set: Oath of the Gatewatch Prerelease Promos Type: Enchantment Rarity: Rare Cost: {5}{G}{G} Whenever you tap a land for mana

Whenever Hero of Oxid Ridge attacks

Set: Sun & Moon: Shining Legends Type: Psychic Rarity: Ultra Rare Retreat cost: Colorless

Set: World Championships 2009 Type: Metal Rarity: Ultra Rare Retreat cost: Colorless

Bestow {3}{G}{G} (If you cast this card for its bestow cost

if you're touching one or more of those cards

ripping itself a new entrance

Set: Tenth Edition Type: Enchantment Rarity: Rare Cost: {2}{B}{B} At the beginning of your upkeep

where X is the number of page counters on Barrin's Codex

If two or more creatures a player controls are tied for highest

Set: Classic Sixth Edition Type: Sorcery Rarity: Rare Cost: {2}{B}{B} Put target creature card from an opponent's graveyard onto the battlefield under your control

Set: Legions Type: Creature — Human Wizard Rarity: Rare Cost: {2}{U}{U} {2}{U}{U}