Vigilance

When Brazen Upstart dies, look at the top five cards of your library. You may reveal a creature card from among them and put it into your hand. Put the rest on the bottom of your library in a random order.

Tap up to two target creatures. Those creatures don't untap during their controller's next untap step.

Each player mills two cards. Then you put a creature card from a graveyard onto the battlefield under your control.

Whenever you cast a creature spell that has an Adventure, Garenbrig Squire gets +1/+1 until end of turn. (It doesn't need to have gone on the adventure first.)

Commander creatures you own have "When this creature enters and at the beginning of your upkeep, each player may put two +1/+1 counters on a creature they control. For each opponent who does, you gain protection from that player until your next turn." (You can't be targeted, dealt damage, or enchanted by anything controlled by that player.)

Whenever equipped creature deals combat damage to a player, you draw that many cards.

Equip

Equip Shaman, Warlock, or Wizard

You may mill three cards. Then return a creature card from your graveyard to the battlefield. (To mill a card, put the top card of your library into your graveyard.)