mtg cards in phyrexian Phyrexian Ingester

All of the symbols and text boxes on Magic cards can be intimidating at first glance, but by understanding what each one means, Magic: The Gathering players can determine a card's power, how it is played, and even its rarity.

Simply casting a creature gives your commander an additional +1/+1 counter the rules never said it had to stay on the field! This means if you're tapped out and have the serpent in hand, you can choose to cast it for zero to get your combo going. It might be painful to toss such a useful card into a graveyard, but if that gets you 6 creatures on the battlefield, it's a good price to pay

Namor the Sub-Mariner

So there we have it with all the basics of Commander under your belt