Isochron Scepter + Orim's Chant + Seedborn Muse + Teferi, Mage of Zhalfir

Isochron Scepter

Orim's Chant

Seedborn Muse

Teferi, Mage of Zhalfir

How it works

1. On each opponent upkeep activate Isochron Scepter to cast Orim's Chant targeting the player who's turn it is, preventing them from casting spells that turn.
2. Seedborn Muse untaps both Isochron Scepter and the mana required to activate it each turn.
3. Teferi, Mage of Zhalfir prevents your opponent from playing spells at instant speed before you are able to cast Orim's Chant or in response to Orim's Chant.
4. You may also pay the kicker cost to prevent them from attacking.