Oh, wow. That's awesome. I must say I like this Rune Thing. So many possibilities. I like how you can turn Big Bad Voodo in to either a AoE heal, AoE mana recovery, or make everything that dies in it resurrect in to Zombie Dogs - which can also be combined with lighting your dogs on fire, making it so that whenever you take damage they take part of it, or making it so that every time they attack, they heal you for 50% of their damage. You can also choose to sacrifice them for mana, hehe.
So many possibilities, they need to reveal Wizard's abilities now.
Also; wonder if Blizzard is trolling us with those titles:
Spoiler: show
or if they truly intend to increase player level up to or past 100 in coming expansions. I'm guessing it's Achievement based, though.