Doing it yourself, of course
Only decks that run Fire Type Energy can utilize it, but there isn't a single deck that can play Welder that isn't
For this article though, were going to run down a bakers dozen of the most expensive Yu-Gi-Oh
Collective Unconscious AND Shamanic Revelation Next are all of the "Draw cards equal to your critter count" which are better than Regal Force since they count all dorks even colorless or other colors
They shuffle that Pokmon and all attached cards into their deck
Once per turn, during damage calculation, if this card battles an opponent's monster: You can send 1 Level 4 monster from your hand or Deck to the GY, and if you do, this card gains ATK equal to that monster's ATK, until the end of the Battle Phase