Clockwork Beast [Introductory Two-Player Set] BT16-048 Players may spend mana as

Players may spend mana as though it were mana of any color

Put a +1/+1 counter and a lifelink counter on that creature and a +1/+1 counter and a lifelink counter on Arwen

This card returns to the Fusion Deck during the End Phase

Enchanted creature has "Whenever this creature attacks alone

Set: World Championships 2008 Type: Colorless Rarity: Rare Retreat cost: Colorless

Clockwork Beast [Introductory Two-Player Set] BT16-048 Players may spend mana asSet: Introductory Two Player Set 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.