Quote from Hemlock »Charla, Bridge Noble
Legendary Creature - Faerie (u)
Whenever a creature enters the battlefield, prevent all damage that would be dealt to or dealt by that creature this turn.
: Create a blue and green 1/1 Faerie creature token with flying.
Baron Sengir, Sovereign of Blood
Legendary Creature - Vampire (m)
Vampire spells you cast cost less.
If Baron Sengir, Sovereign of Blood is your commander, combat damage dealt by vampire creatures you control counts as Baron Sengir, Sovereign of Blood's commander damage.
+Grizzled young Grinder
Vahrtu, Scholar of Thunder
Legendary Creature - Minotaur Wizard (u)
Damage dealt by instant and sorcery spells and by Minotaur creatures you control cannot be prevented.
You may cast Minotaur creature spells as thought they had flash.
Eyes is the sky are not looking around. - Anaba saying.
I like how the flavor a mechanics tie together for Charla, but she reads as doing too much. The power level also feels wrong for an uncommon. UG faeries would be a fun design space to explore, and this starts with an interesting idea. 6/10
Sengir would be EDH only, and a pretty scary one. It might be ok for the vampire tribe, but Im trying to pucture the flavor here in my head, and it doesn't jive. I kinda wish the baron did more of the dirty work himself based on what I know of the character. 7.5/10
Vahrtu pulls the minotaur tribe in a new direction then we've seen recently. Not a bad thing, but it still feels odd. The big thing this brings is granting flash though, and on a red creature feels wrong. 4.5/10
That's a 6/10 overall.