What exactly do you want your win condition to be
Secret Lair) may never find a buyer at your asking price
On the surface it looks like a less than desirable option but since most commanders you'll encounter are multicolour, it becomes the perfect situational spell to cast, like say after a board wipe when everyone is getting their generals back in the game
Kiora, Master of the Depths - her -2 nicely lets you mill, her +1 can be useful when youre just one mana short, and her -8 is just hilarious
Most of the powerful cards in the game end up being Trainer cards, and Pokmon 151 certainly stays true to that statement
Two IRs, an Ultra Rare, and the Jacinthe SIR (which ranked #3 on my Pokmon Perfect Order chase cards list)