Goal: trade all the way up to the Superfractor 1/1 — the grail.
1. Flip the market. Each tier's price drifts up and down. Buy a card when its tier is cheap, sell yours when it spikes. That's how you bank cash.
2. Trade up. The trade floor offers a better card in exchange for one of your cards plus cash. Select the card it wants, then hit Accept.
The ladder: Base → Silver → Blue /99 → Purple /49 → Gold /10 → Black /5 → Superfractor 1/1.
Grail trades only show up once you own a Black /5 — and they're expensive. Flip hard.
You traded your way to the Superfractor 1/1. Legendary run.