Yes, if Rest in Peace is in play and rad counters are triggered, the mill still happened and so life would be lost and the rad counters would go away
Fortunately, we should have some big ones, so while we won't be drawing incrementally, we're running enough effects like Momentous Fall that we should be able to refill our hand periodically, making sure we stay in the game
In older formats and kitchen-table builds, Scroll of Fate and Phyrexian Dreadnought add the kind of legacy weirdness that keeps Magic rules managers gainfully employed
Theres a more obscure one in the fossil set, the Cosmos Holo Foil, an absolute grail
What Is Azorius Good at in Magic
With Resist +1, Kronk, Junior Chipmunk takes one less damage when challenged by an opposing character, giving his five willpower even more durability