Resources

Magic: The Gathering Oracle Changes

Shadowmoor to Eventide (Single Change View)

New cards

Old card (Shadowmoor) New card (Eventide)

Unnerving Assault

{2}{u/r}

Instant

Creatures your opponents control get -1/-0 until end of turn if {U} was spent to play Unnerving Assault, and creatures you control get +1/+0 until end of turn if {R} was spent to play it. (Do both if {U}{R} was spent.)