But Im not here to waste your time going on about flavor (not right now, anyway)
Which format is the best one to start off with once you know the rules
1 Rare or mythic rare, including Booster Fun, double-faced, and retro frame cards Here you can get any of the 60 MH3 rares (79.8%) or 20 mythic rares, including DFC planeswalkers (13.0%), retro frame cards (24 rares, 8 mythic rares [2.1% in total]), or a Booster Fun borderless card, including fetch lands, concept Eldrazi, DFC planeswalkers, frame break cards, profile cards, and other borderless rares or mythic rares (5.1% in total)
By the same token, "Blue" ( Mythical Island ) reduces the damage your Pokmon take from attacks next turn by 10, which can sometimes make the difference between your Active Pokmon being knocked out or surviving