Corvus, at least 2 charges, advance power boost, cosmic power boost 200%, maybe an extra attack boost. Spam sp2 and win the game. Ive one shot him a few times like this
Symb supreme should work, I guess? Would nullify his initial buff so you can parry him, then sp3 and spam sp2 with power steal
I've just recently seen some amazing footage of quake destroying annihilus on that node (with the siphon tactic iirc, although that's kinda irrelevant).Takes some immense quake skills, but she's an amazing counter there.