When I factor in that a couple CE/IE copies of Volcanic Island sold on eBay in the low $300s over the past month, and Im confident this purchase will result in a modest profit
This was one of the original alternate wincons that felt doable in most Magic formats, though its benefitted from an influx of extra gate cards in various MTG sets, which means you dont have to be a 5-color deck to pull off a Mazes End victory anymore
Synergy is not required - just brute strength
Do note that in a casual game, not only does the four copy limit not apply to Legion Angel (except within your deck, as normal) and nor are there any rules as to where the copy outside of the game comes from meaning you can just pull it from your personal collection of cards, as long as you have them with you), in a Tournament there are restrictions on how Legion Angel works
Its a way to buff your creatures and defend them at the same time
In a sense, buying a pokemon card is pretty much buying into the Stock of Pokemon