Whether it's increasing one's own defense, accelerating energy, spreading damage across the opponent's Pokemon, or applying negative statuses like poison or asleep, abilities are an essential part of the game
Piplup will, sadly, probably never be as popular as, say, Squirtle, but on the current market, this card actually feels extremely undervalued
About two years ago we did Kingdra as our Water Stage 2, and it was absolutely busted
Cabal Coffers, Maze of Ith, Dark Depths, Glacial Chasm, Ghost Quarter, Kor Haven, Inventors Fair all of them turn into rainbow lands that cant do anything else when Toxicrene hits the field
Cards that equally benefit you and one opponent are often underrated or controversial in terms of competitive viability (see Secret Rendezvous), but they can inject some excitement into more casual games