@Mega Birb I will not take your offer. Establishing Syphax can just willpower through Alexi's aura sets a really horrifyingly bad precedence, given that most people she would want to use it against are reeaaally strong.
Alexi's plan: After maximum power is stored up, drop Aura and Avalanche Strike Ira's face off, if this doesn't work, she's probably dead already.
So, if for some reason, both Alexi and Ira are still alive after that clash, sure, Syphax can join the fray. I'm betting he's going to be fighting the winner though.