Echoing Echo [Unknown Event] God Each creature you control has

Each creature you control has "Whenever a mana ability of this creature resolves

When Keruga

it fought on the side of the invaders

Then you may choose a token you control

if it doesn't have the same name as another creature or a creature card in your graveyard

Echoing Echo [Unknown Event] God Each creature you control hasSet: Unknown Event Type: Sorcery Rarity: Common Cost: {W} Target creature and all creatures that share a name with that creature gain echo 3 until the end of your next turn. (At the beginning of the upkeep of each of those creature's controllers, if that creature came under its owner's control since the beginning of their last upkeep, they sacrifice it unless they pay its echo cost.