Name: Clockwork Swarm Cost: 4 CMC: 4 Color: CID: Type: Artifact Creature -- Insect Pow/Tgh: 0/3 Rules Text: This creature enters with four +1/+0 counters on it. This creature can't be blocked by Walls. At end of combat, if this creature attacked or blocked this combat, remove a +1/+0 counter from it. {X}, {T}: Put up to X +1/+0 counters on this creature. This ability can't cause the total number of +1/+0 counters on this creature to be greater than four. Activate only during your upkeep. Set/Rarity: Homelands common, Masters Edition IV common Legality: Legal in paupercommander, Legal in legacy, Legal in premodern, Legal in predh, Legal in duel, Legal in commander, Legal in vintage, Legal in oathbreaker, Legal in pauper, Legal in penny Price: $0.18