Journey of Flux

At the end of turn if a player both gained life and lost life this turn put X-Y charge counters on Journey of Flux where X is the amount of life gained and Y is the amount lost.
Remove any number of charge counters from Journey of Flux: Target player loses life equal to the number of counters removed and you gain life equal to the amount of life lost.
If the number of cards in your hand is 7 or more, if you would gain life you gain double that amount instead.