God-Eternal Kefnet + Scroll Rack + Time Warp

God-Eternal Kefnet

Scroll Rack

Time Warp

How it works

1. Tap Scroll Rack and pay 1 to activate it, putting Time Warp on top of your library.
2. Pass the turn.
3. On your next draw step, when you draw Time Warp, reveal it due to Kefnet's ability, making a copy that costs 2 less to cast.
4. Cast the copy for 1, granting you an extra turn.