Clockwork Beast [Fifth Edition] Exodus Promos You can only activate 1

You can only activate 1 "Celestial Observatory" per turn

and he was forced to agree with his elder

if this card attacks an opponent's face-down Defense Position monster

Set: Friday Night Magic 2001 Type: Creature — Jackal Rarity: Rare Cost: {R} Whenever Jackal Pup is dealt damage

Clockwork Beast [Fifth Edition] Exodus Promos You can only activate 1Set: Fifth 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.