I assume there must have been some way to test the cards and how they play out, despite it being undoubtedly more controlled than with MTG where R
The saga creatures in general from FINAL FANTASY were huge flavor wins, as they're directly inspired by their video game counterparts
And to be honest, Pokemon has been pretty rife with cozy artworks that feature fire type Pokemon near a fireplace
Hisuian Zoroark VSTAR [Lost Origin] and Tyranitar ex [Obsidian Flames] both could see a bit more success with some self-damaging Pokemon, and Ballistic Break has some nice synergy too
Bouncy creatures (Shrieking Drake) Play without mana ("Free" spells) Storm Untap lands ("free" spells) When you play a spell
The addition of some new cards like Iridia, Red, and Team Rocket Grunt allows you to deal even more damage, remove energy from your opponents Pokmon and heal your Articuno EX