pokemon neo card set TCG Base Vintage Pokemon Genesis Unlimited Singles - /111 All cards will be carefully packed for safe transit 1st Edition Pokémon Neo Flash

2021-06-18 If you cast a card "without paying its mana cost," you can't choose to cast it for any alternative costs

While in play, Mysterious Fossil counts as a Pokemon (instead of a Trainer card)

Ancestral Illusions doesn't even help with things like Ivory Tower triggers or provide a great pool of unknowns for your opponent as three actually dead cards in hand would do

As a 1/1 for one mana that's not too bad, although modern casual decks would want a bigger power from a one-drop to beat like 2/1 with a weakness for the same mana at common Jungle Lion or a 1/1 with a better ability like fellow common Llanowar Elves or Essence Warden