Legality depends on the tournament format -- Pulse of the Forge can be legal in some formats and banned or restricted in others
Turns out, that was just the trial run, and by evolving the boss monster introduced in the last set into something new and even more powerful, maybe were on the cusp of Ashened becoming a deck with a viable competitive strategy
SR Super Rare UL Ultimate Rare Ojama King X LIGHT Level 6 [ BeastFusionEffect ] ATK 0 DEF 3000 "Ojama Green" + "Ojama Yellow" + "Ojama Black" Choose up to 3 of your opponent's unused Monster Zones
Out Nov 6 The Pokmon Company did not release specific price points for the Pokmon Trading Card Game: 30th Celebration expansion products, but they will presumably cost the same as their equivalent in normal TCG sets
However, with more copies running around, the inclusion of these cards at least lowered their prices on the market to some degree, especially Trident Dragion, which finally found a home in Tenpai Dragons
Powerful combos are an example of extreme synergy