Blazing Tigers 
That’s a tiger right?
kk thank you
Well, it looks like a flaming tiger.
So you could use blazing, scorching, melting, etc
Infernal might be good
That one seems overused, but yeah it would work!
Hound of Tiger 
if you haven’t made it yet
just do “tiger” or “infernal”
simple one word guild names are best
FireFox. Done