First of all, the card comes with two forms of evasion
I had to bookmark it and come back when I had enough time to digest it all
Abzans identity has been slowly shifted more and more towards the graveyard, with counters themes being siloed into GX color pairs (although a certain Phyrexian Angel Horror remains the expanded exception), but Ghave gives players a reason to slam Corpsejack Menace, Conclave Mentor, and Felisa, Fang of Silverquill all in one deck, and thats beautiful
Its still locked to a hyper-specific archetype and still has that issue of not wanting to knock a player out with poison too early, lest you give up some of your precious card advantage
With a mana value of 5, Bloomvine Regent fits well into dragon curves alongside cards like Miirym, Sentinel Wyrm
As with Werefox Bodyguard, having a sideboard option that works with our Elf synergies is extremely useful