He turns four tokens into three +1/+1 counters, so even without built-in protection, this is very doable
If I had to put Flaaffy into the active Pokemon spot, my strategy would be similar to yesterday's Mareep strategy, I would use Power Gem every turn unless using Cotton Guard would prevent Flaaffy from getting knocked out that next turn
There's been a surprising amount of red ramp recently, so playing this six drop ahead of the curve and refilling your hand is distinctly possible - with some counterspell protection from Cavern of Souls, of course
Evolving Wilds, Terramorphic Expanse and any fetch lands are so good when they can be brought back and used again
An abundance of guildgates means you can have a better mana base to cast your spells
That means that while we should add in Staff of Nin because it both helps with pinging and gives us card draw, we probably won't be adding in stuff like Goblin Sharpshooter