The three-cost common will Sign in Blood you and then with void your foes lose the life instead of you
Kodama of the West Tree is a mythic rare, so you won't likely see it
I looked at the all, and I think I've played all but three of them at some point in time in my game playing days, as it's my 2nd favorite color combination to draft for Abedraft (a draft I have of every card ever printed save for around 15 that are too pricey to pickup)
Archmages Charm is extremely pushed, a solid permission spell, a good way to build card advantage for hitting land drops, and a fantastic tool against Deaths Shadow, Wild Nacatl, Goblin Guide, Pyxis of Pandemonium, Champion of the Parish, Aether Vial, Delver of Secrets, Hardened Scales, Amulet of Vigor, Benthic Biomancer, Glistener Elf, Noble Hierarch, Viscera Seer, and sometimes even Hexdrinker (just to mention a few)