His only evasion ability is menace, and he has no protection against removal, which is worrying, but it is easy to grant evasion with non-creature spells, and in Blue-Black, there are plenty of cards to protect Xande, including pitch spells, so I think he can surprisingly pull off a win
The deck is able to close out games incredibly fast and seeing all of the humans get cheated into play is just demoralizing, which causes people to concede much more often than they should
Yoni Skolnik, a principal game designer at Wizards of the Coast, said in a blog post that when the team approached the set, they were careful to find a way to let people enjoy their nostalgia without alienating everyone else that also honored the emotional resonance of the games. As such, the final product is full of little narrative Easter eggs that hint at, but never spoil, major plot beats from the games
It seems like an interesting sideboard card against aggro, at the very least
Trial of Solidarity is the only card in the maindeck that costs more than two mana, and is effectively your finisher