2019-06-14 : A spell or ability that counters spells can still target Urza's Rage. When that spell or ability resolves, Urza's Rage won't be countered, but any additional effects of that spell or ability will still happen.

2019-06-14 : If the target for Urza's Rage becomes an illegal target, the spell won't resolve and will be put into its owner's graveyard with no effect. This is true even if its damage can't be prevented and even though it can't be countered.