The Brothers' War

Arms Race | Enchantment | | {3}{R}: You may put an artifact card from your hand onto the battlefield. That artifact gains haste. Sacrifice it at the beginning of the next end step. | Leesha Hannigan

Bitter Reunion | Enchantment | | When Bitter Reunion enters the battlefield, you may discard a card. If you do, draw two cards. {1}, Sacrifice Bitter Reunion: Creatures you control gain haste until end of turn. | Jake Murray

Draconic Destiny | Enchantment | Aura | Enchant creature Enchanted creature gets +1/+1 and has flying, haste, and "{1}: This creature gets +1/+0 until end of turn." It's a Dragon in addition to its other types. When enchanted creature dies, return Draconic Destiny to its owner's hand. | Justin Hernandez & Alexis Hernandez

Mechanized Warfare | Enchantment | | If a red or artifact source you control would deal damage to an opponent or a permanent an opponent controls, it deals that much damage plus 1 instead. | Robin Olausson

Mishra's Domination | Enchantment | Aura | Enchant creature As long as you control enchanted creature, it gets +2/+2. Otherwise, it can't block. | Fajareka Setiawan

Visions of Phyrexia | Enchantment | | At the beginning of your upkeep, exile the top card of your library. You may play that card this turn. At the beginning of your end step, if you didn't play a card from exile this turn, create a tapped Powerstone token. (It's an artifact with "{T}: Add {C}. This mana can't be spent to cast a nonartifact spell.") | Dominik Mayer