Isochron Scepter [The List] 139 when a monster on the

when a monster on the field activates its effect

and if you fo

Set: Modern Horizons Type: Creature — Kor Cleric Rarity: Rare Cost: {W} {T}: Another target creature you control gains protection from colorless or from the color of your choice until end of turn

take 1000 damage

Set: HeartGold & SoulSilver: Undaunted Type: Darkness Rarity: Holo Rare Retreat cost: Colorless

Isochron Scepter [The List] 139 when a monster on theSet: The List Type: Artifact Rarity: Uncommon Cost: {2} Imprint When Isochron Scepter enters the battlefield, you may exile an instant card with mana value 2 or less from your hand. {2}, {T}: You may copy the exiled card. If you do, you may cast the copy without paying its mana cost.