I'm actually planning on creating these huge monsters known as 'Olympians'. They are extremely powerful and so require a specific edifice to be played before they could be summoned. They're not bad, but make sure to modify it so it becomes more practical.
It's OK if you're ideas clash. Don't make him/her change his/hers just because you're doing something similar (if you meant something different, I'm sorry).
I feel like the Time Lord lends itself to SoR. Free Deja Vus, and 2 in one turn sounds a little OP. Also, for some of these, the casting cost of the lord (18
) is quite a ton for what they do.