The Delta Rune

Other permanents you control gain hexproof.

{5}{w/u}{w/u}: Exile The Delta Rune. Opponents
may put an indestructible counter on up to 3 creatures they control, then destroy all creatures opponents control.
———{line}{line}{line}{line}{line}{line}{line}{line}{line}{line}{line}{line}{line}{line}{line}{line}{line}{line}{line}
The original meaning has been lost to time.