Magmar (44) [Wizards of the Coast: Black Star Promos]Set: Wizards of the Coast: Black Star Promos Type: Fire Rarity: Black Star Promo Retreat cost: Colorless,Colorless

Set: Ultimate Masters Type: Instant — Arcane Rarity: Rare Cost: {X}{U}{U} You may exile a blue card with mana value X from your hand rather than pay this spell's mana cost

forbidding entry to all who come with the heavy tread of hate

If it doesn't

Set: Diamond & Pearl: Black Star Promos Type: Colorless Rarity: Black Star Promo Retreat cost: Colorless

Set: Alpha Edition Type: Creature — Goblin Rarity: Rare Cost: {1}{R}{R} Other Goblins get +1/+1 and have mountainwalk

Set: Platinum: Arceus Type: Fire Rarity: Promo Retreat cost: Colorless

"Some of the other guys dared me to touch it

then untap all Dragons

Set: Secret Lair Drop Series Type: Creature — Goblin Rarity: Rare Cost: {2}{R} Goblin Sharpshooter doesn't untap during your untap step

When Thought-Knot Seer leaves the battlefield

Titania is literally an aspect of the forest itself

Set: XY: BREAKpoint Type: Metal Rarity: Ultra Rare Retreat cost: Colorless