The Pokemon TCG featured some valuable sets during the X&Y era, with Roaring Skies making its mark as one of the top dogs
(If this creature isn't monstrous, put X +1/+1 counters on it and it becomes monstrous.) If Maester Seymour is no longer on the battlefield when its first ability resolves, use its power as it last existed on the battlefield to determine how many +1/+1 counters to put on the target creature
Selesnya is a great color pair for go-wide strategies, so I really think that these two could be a good match in the CMM draft setting
In general, using Magosi, the Watervei in this case is bad idea
The upcoming MTG Doctor Who decks promise to provide us with every single iteration of The Doctor since the character was first introduced in 1963, plus a load of his trusty companions
And they often allow players to interrupt opponents' strategies and gain an advantage