She gains a loyalty counter to create a 1/1 creature token (which automatically becomes two), she adds a +1/+1 counter on all of your creatures AND gives them flying until your next turn (all for free), or she can sacrifice three loyalty counters to destroy a target creature of mana value three or greater
If you want to fill your graveyard, Resentful Revelation is exactly how you want to go about doing it
After all, if someone kills the bearer of gifts, nobody will get any more free stuff
As a two-mana green Creature with the same effect as Spelunking, this card has a lot of appeal for Amulet Titan players
Then, even though they turn into noncreature Incubators, theyre still Incubators, so you have until the end of the turn to pay the mana to transform them
The fact that it's automatically a one-mana 6/6 flier with lifelink in Commander is also not to be overlooked