Artifact - Equipment
Equip (R/G)(R/G)(R/G)
Whenever a Equipment leaves the battlefield, put two -1/-1 counters on up to one target Myr
Equipped creature gains protection from permanents an opponent controls
All permanents you control are Swamp lands in addition to their other types

Converted mana cost: 3

AlexChurchill/TypeFourArtifactGenerator