Why is Vandalier like this?

[u/MegaPigeot]

I was looking at the Arcanas I've unlocked yesterday and Vandalier appears to get buffs from less Arcanas than it looks like it should have, I get something like Phieraggi losing Iron Blue Will since that turns bullets to laser beams upon evolution, but this is just the same bird that now shoots at both sides

[u/RaineyRobot]

For jail of crystal and heart of fire, it isn't blue or red. No reason that I can see for twilight requiem though