You'll still mill cards equal to the number of rad counters you have, and you'll still remove a rad counter from yourself for each nonland card you milled, but instead of losing life, you'll gain 1 life for each nonland card you milled
Im also reminded of Mirrorform from Lorwyn Eclipsed, which transforms all of your non-land permanents into a copy of a non-aura permanent
A few examples that tend to show up on most wanted lists include Doubling Season (anime alt art), Smothering Tithe with a manga-inspired design, or perhaps Finneas, Ace Archer if it appears in a special release
This closed the portal, trapping Yawgmoth and his armies inside, they would remain there for 5000 years, until a certain pair of brothers stumble upon them
End the turn effects will skip over the trigger that causes you to sacrifice or exile your token, effectively allowing you to keep it for good