Clockwork Beast [Introductory Two-Player Set] BW45 where X is the number

where X is the number of cards revealed this way

Set: Starter Commander Decks Type: Artifact Creature — Construct Rarity: Mythic Cost: {4}{R}{R} First strike

They phase in before you untap during your untap step

Set: Nintendo: Black Star Promos Type: Fighting Rarity: Promo Retreat cost: Colorless

and you give me information

Clockwork Beast [Introductory Two-Player Set] BW45 where X is the numberSet: 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.