pokemon obsidian flames full art cards - Poppy 220/197 - - Ultra Rare Captured in a crystal Pokemon Obsidian Flames Single Card

Circling back to TAUC costs, you could argue its actually even closer to free than other alternate costs: life points and cards in hand are expendable resources, and (at least for drawing cards) somewhat expensive to replenish

This is a 100% authentic Japanese product

Sure it's a sorcery, but simple and effective is sometimes the best

If I were to tweak it further, I would look at making the Dragon Tempests do more so you can amp up the flying and/or Dragon synergy

Regeneration functions as a replacement effect, meaning that the effect waits for one conditional event to replace with another

However, with great power (and toughness) comes great downsides, or whatever Aunt May said