kavaero can target out side a graveyard
I there was not the target card in a graveyard - Ulamog.
not in neither graveyards.
there is one in his hand though. and in the exile.
the log is included for further investigation.
1
vote
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Rezzahan#77802
commented
Kavaero exiles the card it copies. So it is exepcted to be in exile when Kavaero is on the battlefield. And it is.
(The exile happens with a trigger, though, so there is a time when Kavaero is on the field and a copy of the card, while it is still in the graveyard. This window is also the reason why copying a Bringer of the Last Gift with it can return the originbal Bringer with its trigger).