They can be solved fairly easily, and, unless combined with the other half of their combos (proliferation of counters, Mycosynth Lattice, Wheel of Fortune), dont have a huge impact on the game for more than a couple of turns
A low-end graded Pikachu can be less useful than a clean raw copy if the slab premium is too high
Vintage kept its restricted list, because some people wanted to play with powerful cards (and also because Type 1.5, aka legacy had started to take root, which, at the time, was just vintage with the restricted list renamed "banned list"), but in standard, you already couldn't play with all your cards, so there really wasn't any good reason to keep a restricted list
This will be the chase card of the set, with its sheer presence and shiny beauty likely to be very coveted by Avatar and MTG fans alike
Runners-Up: Underappreciated M:TG Cards for Any Format One With Nothing is a notorious card from the Champions of Kamigawa block, a cheap black instant that discards the player's entire hand