Well then, I have the deal for you
For example, the Terapagos ex card above has the Crown Opal attack, which costs 1 Grass, 1 Water and 1 Lightning Energy to use, but it deals 180 HP of damage and also stops all attack damage done to the Terapagos ex on your opponents next turn, if dealt by a Basic, non Colorless Pokmon
Katilda and Lier Bant Humans is already a pretty good type of Commander deck, and it only gets better when Katilda and Lier essentially turns every creature in your deck into a Snapcaster Mage
If you're still having this problem, check out this link to see if my suggestions help you out as well: Game Disk Stopped Working on my Nintendo 3DS Good luck
In the late game this will be better than a one mana Coercion (as you can hit lands) but that isn't going to be much help against a lot of decks