Neru, the Prison Blade

Pact - Gain a debt counter, then pay 1 life for
each debt counter you have: Equipped creature
gains deathtouch and undying until end of turn.
Then choose a player at random. That player
creates Otosan, a legendary 4/4 red and black
Demon creature token with flying and haste.
Exile that token at the beginning of their next
end step. Activate this ability only once per turn.
Equip - Gain a debt counter.