mtg journey into nyx card list Knowledge and Power (101) Magic The Gathering D8437* At the beginning of your upkeep Magic: the Gathering Journey into
Description
It has the Flash mechanic, meaning it can be cast at any time an Instant-speed spell could

If multiple players each cast just one spell during the previous turn, the ability wont trigger

Diregraf Captain

If an effect would set your life total to a specific number that's higher than your current life total, that effect causes you to gain life equal to the difference
In both cases, this is a text-changing effect