When playing as Ozumat with a trinket that spawns a Fish of N’Zoth at the start of combat and you have 6 minions on board, Tentacular spawns instead of the fish of n’zoth. I think this is a bug because the Tentacular is meant to spawn only when there’s space on the board.
and there was space on your board when the fight started
Ozumat is terrible with start of combat effects that summon minions because its hero power will always trigger first
Yup, hero powers happen before trinkets, and trinkets happen before tavern spell auras, and then tavern spell auras happen before your minions start of combat in order of left to right. So if playing as Ozu and you picked the fish of Nzoth, you need to only have a board consisting of 5 minions otherwise you will lose out on that trinket choice because your hero power takes precedence over the trinket.