Goes straight to attack phase even if I had creature abilities I can active from mana of creatures? Am I missing something just lost a game I was sure I was about to win.

So I had Alosauras Shepard on the field as well as Priest of Titania and Elvish Archdruid and about 17 elves (both of which tap for mana on the amount of elves). I cast Maha feathers night using up all my lands and it get instantly put to attack mode and I can active allosaurus Shepard ability to make everyone a 5/5.

I tried tapping him and it just set him to attack only and he died. Losing me the game. I think that part may have been a bug but I think I’ve had this very similar thing happen before. An elf to tap for mana but it pushes me to attack and I can’t go back to first main phase.

So frustrating it was such a good game