Oko, Thief of Crowns
Legendary Planeswalker — Oko
+1: Target artifact or creature loses all abilities and becomes a green Elk creature with base power and toughness 3/3.
−5: Exchange control of target artifact or creature you control and target creature an opponent controls with power 3 or less.
Legal in
Vintage, Commander
Rulings (13)
Because damage remains marked on a creature until the damage is removed as the turn ends, nonlethal damage dealt to a creature may become lethal if Oko's second ability changes its toughness during that turn.
2019-10-04
If either of the target permanents is an illegal target when Oko's last ability resolves, the exchange won't happen.
2019-10-04
Oko's second ability may target a permanent that is only temporarily an artifact or a creature, such as Oko, the Trickster. If this happens, the effect causes that permanent to remain a green Elk creature even after the temporary effect expires.
2019-10-04
If the affected creature gains an ability after Oko's second ability resolves, it will keep that ability.
2019-10-04