The new character is indeed pretty great. Probably already my second favourite character to have a casual run with - maybe even better than Isaac given a bit more time. Recorded the back half of my last run just to demonstrate how crazy it can get, so I'll edit that in here when it's ready.
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Apollyon's item, Void, is fucking amazing, and 99% of the reason the character is so good.
It absorbs other active items & reproduces their effect upon use. In the run I've recorded I absorbed Satanic Bible, GameKid, Mom's Bottle of Pills, Guppy's Paw, and a few others, including a new shop item called Mama Mega, which is what caused the huge explosion every time i entered a new room, and also blows up Boss Rush, Hush & any secret rooms until you leave the room.
Ouroboros Worm is my kind of trinket too.
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