To build a Magic: The Gathering Arena deck, you'll need to collect all the cards necessary for the deck list (click on the images above each deck in our guide to see the cards you need), then navigate to the 'Decks' area in the game client, create a deck, and add all those cards to it
Over time, the cream will rise to the top and cuts will be made, but for now I like dabbling in a few of them and seeing which are best through testing
At the beginning of each combat, untap equipped creature
If you eventually want to join local store tournaments, you will want to focus your purchases on active Core-legal sets like Whispers in the Well, Winterspell, or Wilds Unknown
I remember trading really bad cards for really good ones with a girl I had a crush on after she came back from Japan
Yawgmoth's Will and Underworld Breach can let you play cards directly from your graveyard