Because life gain is so relatively potent you can pull back a lot of lost tempo against more agro decks and swing the tide with one card even when things look quite bleak
Pokmon TCG Live is coming with upgrades like a ranked ladder, 3D avatars, and battle passes
It is available with the handle on top or on the side (brief case style)
Its a genuinely dangerous card in standard play
Based on this card alone, this could be a deck that focuses heavily on interaction with the graveyard to discard and recall lands, but more realistically, it is likely that the deck will be set up to pull mana from sources other than just lands to allow for the discarding of lands without it impacting the deck too negatively
Ariados and Whimsicott ex deck card list Genetic Apex (A1) Erika x1 (Charizard Pack) Sabrina x1 (Charizard Pack) Spacetime Smackdown (A2) Cyrus x1 (Palkia Pack) Celestial Guardians (A3) Leaf Cape x2 (Solgaleo Pack) Mega Rising (B1) Copycat x1 (Mega Gyarados Pack) Cottonee x2 (Mega Altaria Pack) Lisia x1 (Mega Altaria Pack) Whimsicott ex x2 (Mega Altaria Pack) Crimson Blaze (B1a) Ariados x2 Quick-Grow Extract x2 Spinarak x2 Promo-A Pok Ball x1 Professors Research x2