feebas pokemon card Pokémon TCG - - 198/191 - Illustration Rare - Surging Sparks Weakness / Resistance / Retreat Cost Pokemon - Feebas 198/191 -

Since you're essentially recycling your entire deck, it's easy to do this by casting Dark Ritual over and over for infinite mana, or using Gaea's Cradle and Crop Rotation to achieve the same goal

And Im not too worried about a few unblockables being made in a format like Commander where you start at 40 life

While other cards that discard your cards give you some immediate benefit on its own like summoning creatures, drawing cards, or also force your opponent to discard cards as well, One With Nothing has no direct benefit by itself and you need other cards to make use of it

Electrobullet This attack also does 30 damage to 1 of your opponent's Benched Pokemon

Thats an absurd amount of value for only two mana, and thats not including the fact that youve probably already got some value from it by casting it in the first place