Heroic Intervention [Core Set 2021] RT5 when your opponent activates a

when your opponent activates a monster effect: You can detach 1 Xyz Material from this card

Set: Structure Deck: Blaze of Destruction Card type: Normal Spell Rarity: Common Attack: 0 Defense: 0 Discard 1 card from your hand

it has "When this creature becomes the target of a spell or ability

Set: Guilds of Ravnica Prerelease Promos Type: Instant // Instant Rarity: Rare Cost: {G/W}{G/W} // {4}{G}{W} Put a +1/+1 counter on target creature

Set: Mystery Booster Type: Creature — Human Soldier Rarity: Uncommon Cost: {2}{W}{W} When Palace Jailer enters the battlefield

Heroic Intervention [Core Set 2021] RT5 when your opponent activates aSet: Core Set 2021 Type: Instant Rarity: Rare Cost: {1}{G} Permanents you control gain hexproof and indestructible until end of turn. "Wherever the strong would harm the weak, I will be there." Ajani Goldmane