Chatterfang, Squirrel General (Borderless Alternate Art) [Modern Horizons 2] SV11 royal assassins choose their victims

royal assassins choose their victims carefully

you may search your library for a card with the same name as that creature

"Black Magic Ritual"

you can Tribute 1 monster to have this card gains ATK equal to the original ATK of the Tributed monster until the End Phase of this turn

Chatterfang, Squirrel General (Borderless Alternate Art) [Modern Horizons 2] SV11 royal assassins choose their victimsSet: Modern Horizons 2 Type: Legendary Creature Squirrel Warrior Rarity: Mythic Cost: {2}{G} Forestwalk (This creature can't be blocked as long as defending player controls a Forest.) If one or more tokens would be created under your control, those tokens plus that many 1 1 green Squirrel creature tokens are created instead. {B}, Sacrifice X Squirrels: Target creature gets +X X until end of turn.