Contagion Engine [Scars of Mirrodin] Duelist Pack Collection Tin their ATK is halved

their ATK is halved

When an effect of a monster on the field is activated

Set: Classic Sixth Edition Type: Instant Rarity: Rare Cost: {R}{R} Take an extra turn after this one

{T}: Put up to X +1/+0 counters on Clockwork Avian

except "Elemental HERO Absolute Zero"

Contagion Engine [Scars of Mirrodin] Duelist Pack Collection Tin their ATK is halvedSet: Scars of Mirrodin Type: Artifact Rarity: 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. (Choose any number of permanents and or players, then give each another counter of each kind already there. Then do it again.)