Deal combat damage to an opponent using Ayara's Oathsworn.
Ayara's Oathsworn triggers, putting a +1/+1 counter on it and searching your library for Beacon of Tomorrows and putting it into your hand.
Activate Hex Parasite by paying ({1} magic symbol) ({BP} magic symbol) , removing a +1/+1 counter from Ayara's Oathsworn and giving Hex Parasite +1/+0 until end of turn.
Cast Beacon of Tomorrows by paying ({6} magic symbol) ({U} magic symbol) ({U} magic symbol) , causing you to take an extra turn after this one, and shuffle Beacon of Tomorrows into your library.