Lugia GX came out in Sun and Moon Lost Thunder in 2018 and despite its popularity, it sadly was not the most competitive in the game
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
Being able to EoT kill their plays is mostly nice for mana saving and for late game targets mana saving isn't a big deal
2024-11-08 If the copied creature is copying something else, then the token enters as whatever that creature copied, with the listed exceptions
Now we're in Attack of the Vine territory, but there's more to come this year (and beyond)
As a completely new resource in a Standard-legal set, its understandable that R&D didnt want to go too hard and print a ton of synergy and overpowered cards