Ah yes, almost came up but didn't.
1 wolf: X "hp".
2 wolves: X+1 "hp".
1 wolf and 1 gnoll trainer: X+Y(+2?) "hp".
How do you handle mixed-type fights? Do each of them get all of their moves? Do they both get armor for being in a group? Do you construct a hybrid on-the-fly? In particular I expect this to come up a bunch with 1 leader plus their minions, which is how it almost came up for me.