how do flip cards work in mtg double-sided Magic the Gathering gameplay? I've seen many cards like

If you choose not to reveal or pay the alternate cost immediately, the card enters your hand and the miracle cost cant be invoked to cast the card later

Mage Slayer Mage Slayer gives the equipped creature an ability I like to call first first strike. As in, it deals damage when you declare it as an attacker, before your opponent even gets to declare blockers

Again, another one for Etali, Primal Storm if you have ways to keep Etali indestructible

It eats the things that eat the things that are drawn to the light

The real excitement comes from solving the puzzle of how to fuel it

I dont play Magic , but I did buy the Sonic cards they put out earlier this year just to get the Shadow the Hedgehog one