>>543322261
She's not great, barely good, but it's not nothing, her talent is basically the same as Blaze's but smaller multiplier and the enemy needs to be in range of Warmy for her to do the thing.
The one upside is that Warmy's S2 does give a bigger ATK buff than anything Blaze's has on herself, meaning Warmy can when maxed(and Blaze is also E280) do a bigger proc burst... by like 300 damage. If we assume both is maxed(sans pots) it's under 200.
Of course, if you set it up so enemies are procced by them both with a Yu, Warmy and Blaze setup and within Warmy's range a lot of things simply disappear once they proc burn. She's certainly no replacement, but by the fact she does basically the same thing, they work just fine together, assuming the stage can permit a good placement for Warmy.