Mirrorpool (Borderless - Galaxy Foil) Commander Legends Assassin spells you cast have

Assassin spells you cast have freerunning {B}{B}

create a 1/1 black Vampire creature token

Prevent all combat damage that would be dealt to you this turn

{T}: Double target creature's power until end of turn

this enchantment deals damage equal to the number of wind counters on it to each creature and each player

Mirrorpool (Borderless - Galaxy Foil) Commander Legends Assassin spells you cast haveThis land enters tapped. {T}: Add {C}. {2}{C}, {T}, Sacrifice this land: Copy target instant or sorcery spell you control. You may choose new targets for the copy. {4}{C}, {T}, Sacrifice this land: Create a token that's a copy of target creature you control.