Loxi: I see this being a bit more popular in 60-card formats or limited, but it's a good way to buy some time if you want to stall the board
Opponents argue this would homogenize the format, with decks bleeding into each others strategies and breaking the creative challenge that comes from working within strict color limitations
As for something more dedicated, Id check out Sam Blacks Five-Color Niv-Mizzet Reborn / Bring to Light snow deck
5D's was made by Nihon Ad Systems and TV Tokyo
If youre interested in picking up some booster bundles for any of Mega Evolution - Pitch Black, Chaos Rising, or Perfect Order, youre in luck
The Glaceon VMAX may look like the most visually impressive, but its actually the least valuable of the lot at the time of writing