Spreading Plague [Invasion] Battle for Zendikar "Superior force meets woefully inadequate

"Superior force meets woefully inadequate object

then that player shuffles their hand into their library

before leading an army against the Shu

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

Set: Unlimited Edition Type: Enchantment Rarity: Rare Cost: {R}{R} Whenever one or more creatures you control attack

Spreading Plague [Invasion] Battle for Zendikar "Superior force meets woefully inadequateSet: Invasion Type: Enchantment Rarity: Rare Cost: {4}{B} Whenever a creature enters the battlefield, destroy all other creatures that share a color with it. They can't be regenerated. The cruelest strain of plague keeps its hosts alive long enough to return home and infect their families.