March of the Machine

Invasion of Ulgrotha // Grandmother Ravi Sengir | Battle // Legendary Creature | Siege // Human Wizard | (As a Siege enters, choose an opponent to protect it. You and others can attack it. When it's defeated, exile it, then cast it transformed.) When Invasion of Ulgrotha enters, it deals 3 damage to any other target and you gain 3 life. // Flying Whenever a creature an opponent controls dies, put a +1/+1 counter on Grandmother Ravi Sengir and you gain 1 life. | Viko Menezes

Fearless Skald | Creature | Dwarf Berserker | Backup 1 (When this creature enters the battlefield, put a +1/+1 counter on target creature. If that's another creature, it gains the following ability until end of turn.) Double strike | Slawomir Maniak

Ravenous Sailback | Creature | Dinosaur | When Ravenous Sailback enters the battlefield, choose one — • Ravenous Sailback gains haste until end of turn. • Destroy target artifact or enchantment. | Andrew Mar

Joyful Stormsculptor | Creature | Human Shaman | When Joyful Stormsculptor enters the battlefield, create two 1/1 blue and red Elemental creature tokens. Whenever you cast a spell that has convoke, Joyful Stormsculptor deals 1 damage to each opponent and each battle they protect. | Christina Kraus