Actually, the effect part for Tregear is meant to represent the Trera Ultigeyser, not the Trera Ardiga.

That's what the product description reads, but I'm inclined to believe they mixed the two up as Ultigeyser is a beam, not individual bolts like Ardiga.

"seemingly as a P-Bandai exclusive"

Any product announcement with the "魂ウエブ商店" logo is already a dead giveaway.

Welcome to Tokunation! :)

It’s generally a better idea to be vague until info from Tamashii themselves is out, misprints happened in magazines before. Figures which were retail releases had the logo applied by mistake; figures that were Web-Exclusive lacked it.

And cut out scans can either hide the logo or have it in frame yet it belongs to a different figure altogether.

Just to be safe, there's nothing lost by being cautious but on the other hand, making false assumptions can be confusing.