Tainted Aether [Urza's Saga]Set: Urza's Saga Type: Enchantment Rarity: Rare Cost: {2}{B}{B} Whenever a creature enters the battlefield, its controller sacrifices a creature or land. Gix despised the sylvan morass. The gouge that the portal had torn in the forest was the only pleasing sight.

except it's an artifact in addition to its other types

Set: Darksteel Type: Artifact Creature — Beast Rarity: Rare Cost: {2} Sacrifice an artifact: Put a +1/+1 counter on Arcbound Ravager

One mogg to aim the catapult

" —Gwendlyn Di Corci

Enchanted creature gets +3/+3

An opponent chooses one of them

Part prison

Set: Unlimited Edition Type: Artifact Rarity: Rare Cost: {2} Whenever a land enters the battlefield

one of which has "bands with other legendary creatures

Yawgmoth praetor

Set: Unlimited Edition Type: Instant Rarity: Rare Cost: {U} Target spell or permanent becomes blue

summits that inevitably devolved into brawls