Clockwork Beast [Beta Edition]Set: Beta Edition Type: Artifact Creature Beast Rarity: Rare Cost: {6} Clockwork Beast enters the battlefield with seven +1 +0 counters on it. At end of combat, if Clockwork Beast attacked or blocked this combat, remove a +1 +0 counter from it. {X}, {T}: Put up to X +1 +0 counters on Clockwork Beast. This ability can't cause the total number of +1 +0 counters on Clockwork Beast to be greater than seven. Activate only during your upkeep.

you may pay {1}{B} and exile it with seven time counters on it

Set: Base Set 2 Type: Psychic Rarity: Uncommon Retreat cost: Colorless

Goblins Type: Creature — Elf Rarity: Rare Cost: {3}{G}{G} Tap five untapped Elves you control: Create a 7/7 green Elemental creature token with trample

Set: Neo Destiny 1st Edition Type: Grass Rarity: Holo Rare

Set: POP Series 1 Type: Colorless Rarity: Common Retreat cost: Colorless

After lightning struck the cliffs

Set: Black & White: Plasma Storm Type: Lightning Rarity: Rare Retreat cost: Colorless

you may remove those counters and transform it

Set: POP Series 3 Type: Stadium Rarity: Uncommon

Set: Sun & Moon: Ultra Prism Type: Darkness Rarity: Holo Rare Retreat cost: Colorless

Set: Battle for Zendikar Type: Land — Swamp Mountain Rarity: Rare ({T}: Add {B} or {R}

Set: Fossil 1st Edition Type: Water Rarity: Holo Rare Retreat cost: Colorless