Once you do that, you get a planeswalker that will threaten to dominate the board, whether through card advantage, or removing, or creating a new threat
Do you feed the fish? is a question as old as Commander, and because of this infamy, many times the Mystic Remora player will sit back and watch as nothing happens for several turns until, eventually, the cumulative upkeep cost becomes too exhaustive, the Mystic Remora is sacrificed, and suddenly the game begins in earnest
The main set has 204 cards, and were expecting 18 or more Enchanted alternate art cards, which have secret numbering above 204
It can be important that all your live draws (Non-Land Draws) are action spells
After doing so, you'll be sent to your card collection to pick the card for trading