Hylda of the Icy Crown + Mind Over Matter + Elvish Mariner + Curator of Mysteries

Prerequisites

• You have at least one card in hand.
• You control a mana-producing permanent.

Steps

1. 1When an opponent controls an untapped creature, activate a mana-producing permanent by tapping it, adding at least .
2. 2Activate Mind Over Matter by discarding a card, targeting the mana-producing permanent.
3. 3Curator of Mysteries triggers, causing you to scry 1.
4. 4Elvish Mariner triggers, causing you to tap an untapped creature an opponent controls.
5. 5Hylda of the Icy Crown triggers, causing you to pay to scry 2 and draw a card.
6. 6Elvish Mariner triggers, causing you to tap nothing.
7. 7Resolve the Mind Over Matter ability from step 2, untapping the permanent.
8. 8Repeat as desired.

Effects

• Tap all creatures opponents control during each turn