original koffing pokemon card 57/135 - Plasma Storm Weakness Fighting ×2 Resistance None None Retreat Cost Koffing (Hidden Fates 28) -

Play the FFTCG tutorial:

It is a playable cube card but it isn't very efficient or effective which is not sufficiently compensated for by its cycling

The idea of a 100 card set is that this is the middle ground between a full draft set and the smaller offerings such as a Secret Lair

You can untap it by putting a -1/-1 counter on it, so pair it with something that offsets the counters or turns it into a non-creature, and youve got infinite green mana

But if you have a base-set card in your card collection, there are a few visual indicators of its worth

The advantage of Sage is cost but if that is what you are after then Nature's Claim, Degalmor or Naturalize should offer more utility