Sivitri, Dragon Master [Dominaria United Commander] Phyrexian Elf Warrior Set: Secret Lair Drop Series

Set: Secret Lair Drop Series Type: Legendary Artifact — Vehicle Rarity: Mythic Cost: {5} Flying

Sword of War and Peace deals damage to that player equal to the number of cards in their hand and you gain 1 life for each card in your hand

Then each creature you control becomes a Phyrexian in addition to its other types

you create a Treasure token

you mill that many cards

Sivitri, Dragon Master [Dominaria United Commander] Phyrexian Elf Warrior Set: Secret Lair Drop SeriesSet: Dominaria United Commander Type: Legendary Planeswalker Sivitri Rarity: Mythic Cost: {2}{U}{B} +1: Until your next turn, creatures can't attack you or planeswalkers you control unless their controller pays 2 life for each of those creatures. 3: Search your library for a Dragon card, reveal it, put it into your hand, then shuffle. 7: Destroy all non Dragon creatures. Sivitri, Dragon Master can be your commander.