Shirei, Shizo's Caretaker [Ultimate Masters] Synth Knight you may untap it

you may untap it

Set: Innistrad: Crimson Vow Type: Instant Rarity: Common Cost: {X}{U} Counter target spell unless its controller pays {X}

When Mist Raven enters the battlefield

I hope this persuades them to work together more

Return that card to the battlefield if its mana value is less than or equal to the number of basic land types among lands you control

Shirei, Shizo's Caretaker [Ultimate Masters] Synth Knight you may untap itSet: Ultimate Masters Type: Legendary Creature Spirit Rarity: Uncommon Cost: {4}{B} Whenever a creature with power 1 or less is put into your graveyard from the battlefield, you may return that card to the battlefield at the beginning of the next end step if Shirei, Shizo's Caretaker is still on the battlefield.