Infinite combat damage, Infinite combat phases, Infinite mana creatures you control can produce, Infinite untap of creatures you control
On the end step prior to your turn, cast True Polymorph by paying , causing Port Razer to become a copy of Eye of Vecna.
Activate The Book of Vile Darkness by tapping it and exiling it, Port Razer and Hand of Vecna, causing you to create a legendary 8/8 Vecna token that has all triggered abilities of the exiled cards.
During your next turn, deal combat damage to an opponent using Vecna.
Vecna triggers, causing you to untap each creature you control and to get an additional combat phase
Component Cards
How It Works
On the end step prior to your turn, cast True Polymorph by paying , causing Port Razer to become a copy of Eye of Vecna.
Activate The Book of Vile Darkness by tapping it and exiling it, Port Razer and Hand of Vecna, causing you to create a legendary 8/8 Vecna token that has all triggered abilities of the exiled cards.
During your next turn, deal combat damage to an opponent using Vecna.
Vecna triggers, causing you to untap each creature you control and to get an additional combat phase after this one.
Repeat from step 3.