Oko, Thief of Crowns

[+2]: Create a Food token. (It's an artifact with "{2}, {T}, Sacrifice this artifact: You gain 3 life.")
[+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.