March of the Machine

Furnace Reins | Sorcery | | Gain control of target creature until end of turn. Untap that creature. Until end of turn, it gains haste and "Whenever this creature deals combat damage to a player or battle, create a Treasure token." (It's an artifact with "{T}, Sacrifice this artifact: Add one mana of any color.") | Brian Valeza

Into the Fire | Sorcery | | Choose one — • Into the Fire deals 2 damage to each creature, planeswalker, and battle. • Put any number of cards from your hand on the bottom of your library, then draw that many cards plus one. | Grzegorz Rutkowski

Nahiri's Warcrafting | Sorcery | | Nahiri's Warcrafting deals 5 damage to target creature, planeswalker, or battle. Look at the top X cards of your library, where X is the excess damage dealt this way. You may exile one of those cards. Put the rest on the bottom of your library in a random order. You may play the exiled card this turn. | Zara Alfonso

Searing Barb | Sorcery | | Searing Barb deals 2 damage to any target. If it's a creature, it can't block this turn. Incubate 1. (Create an Incubator token with a +1/+1 counter on it and "{2}: Transform this artifact." It transforms into a 0/0 Phyrexian artifact creature.) | Tiffany Turrill