Contagion Engine [Scars of Mirrodin] Land put a -1/-1 counter on

put a -1/-1 counter on each creature target player controls

you gain X life and draw X cards

destroy the other creature at end of combat

Set: Legends Type: Enchantment — Aura Rare Cost: {W}{W}{W} Enchant creature Whenever enchanted creature blocks or becomes blocked by a creature with toughness 3 or less

Contagion Engine [Scars of Mirrodin] Land put a -1/-1 counter onSet: Scars of Mirrodin Type: Artifact Rare Cost: {6} When Contagion Engine enters the battlefield, put a 1 1 counter on each creature target player controls. {4}, {T}: Proliferate, then proliferate again. (You choose any number of permanents and or players with counters on them, then give each another counter of a kind already there. Then do it again.)