Butterfly Mansion

Defender
Hospitalize{4}(you may put a creature you control inside of the building for 1 turn, return it to the
battlefield on your opponents next end faze with
+0+3 until end of your next turn you may not
Hospitalize the same creature twice in a row)
Training{4}(You may put a creature you control
inside of the building for 1 turn, return it to the
battlefield on your opponent's next end faze
with +3/+0 until the end of your next turn)