End of days

Split second, Fulfilled Prophecy (This card
Cannot be played unless you control any form of envoy
and a card with "Vision" in it's name.)
If You Control "Zirzettin, Vision of Light",
"Vedalis, Vision of Spirit" and "Everscal, Vision
of Beasts", sacrifice them, as well as any form of
envoy you control and any inert form of envoy
under them. If you sacrifice any form of envoy
and all three visions named previously, Play
"Envoy, Vision of Discord" From your
Sideboard, this effect c