Aleksos, Render of Realms

Flying, ward —exile a nonland permanent you control or a nonland card from your hand with a stash counter on it.

Whenever you play a spell from exile, you may have Aleksos, Render of Realms deal 3 damage divided as you choose among up to three targets.
{2}{u}: Exile target nonland, nonartifact card from your graveyard or target permanent you control and put a stash counter on it.
{1}{b}{r}{t}: Until end of turn, you may play cards from exile with stash counters on them and you may spend mana as