$1 pokemon booster packs Surging Sparks Box along with more Mega Evolution Pokémon ex Pokemon Lightning Power Box [1

It'll speed you up so much

The -3/-3 from Locthwain Scorn is enough to take down most of the one, two, and three mana creatures in the format

The print run of Beta is given as 7.3 million [1] or 7.8 million [2] [6] depending on the source

If you don't have any untapped/available mana, you cannot cast anything else

Your decks and card collection are stored as a part of your Pokmon Trainer Club account, allowing you to switch between tablet and desktop with ease

Relic of Progenitus advantage is mainly that it cantrips when exiling the graveyard so combo and maybe control strategies may want the card draw instead of the beater