You can also play the Plains, though that doesn't immediately do anything for you
Brawl Legal Vintage Legal Timeless Legal Commander Legal Pauper Not Legal Oathbreaker Legal Penny Legal Toolbox Buy This Card Notes and Rules Information for Jenova, Ancient Calamity: If Jenova isn't on the battlefield at the time its first ability resolves, use Jenova's power as it last existed on the battlefield to determine how many counters to put on the target creature
(To surveil 2, look at the top two cards of your library, then put any number of them into your graveyard and the rest on top of your library in any order.) Instant Mizzix's Mastery Exile target card that's an instant or sorcery from your graveyard
Frankly, terrible in a fight, but thats so far away from what Bruvac is all about, so it really doesnt matter
Choco gives you immediate benefits if you have other birdies, as you get card advantage and lands for each bird attacking
That being said, this card is more than powerful enough to have had a last impact on Standard