It was only available inside random booster packs of the SV9a Heat Wave Arena series that was released in Japan, in March, 2025
An extremely simplified rule of thumb you can follow is this: you generally want to trade up and avoid trading down
C Common SE Secret Rare UR Ultra Rare UL Ultimate Rare Related Cards View as Gallery View as List Arcana Call X TRAP Target 1 "Arcana Force" monster you control and 1 "Arcana Force" monster in either GY
Valuable Pokemon Sets & Pokemon Trading Card Game Values Valuable Pokmon sets, often complete or featuring rare cards, are a key focus for investors
Even with all that considered I still really like Lynde and all the possibilities to play around with curses
Sea Monster decks will love this, and with all of the draw-on-combat-damage effects in blue and green, getting some cheeky unblockable Fish is pretty good, actually