>>714200821
If you're a completely new player you can make a new account and swift through the early game content and that should give you more than enough gems to build mimighoul. It's going to be in the store for the next month and if you play with with something cheap like kashtira (look it up) it can win you more than a few handful of games in the meantime.
Beware in 3 days a complete nuclear atomic bomb of a new deck is releasing. But it's all waifus.