Ooh, tough one. I love Tetra Master though.
I'm sure it's not Viltgance, that one is in the 80s I think, 87 or 88.
Odin, I think, is in the 60s, probably somewhere from 63-65.
So it's between Holy and Flare. I think the Magic cards comes in the order Holy, Meteor, Flare. Judging by their position my guess would be Flare.

So yeah, I guess c. Flare.
*Eep*