This is a very convoluted strategy, though, and is very difficult to pull off
The Pokmon-GX rules box took the place of the Pokdex entry
In the incredibly rare case where there is no legal target for the first or second mode, those modes can't be chosen at random
They mutate into the creature on top plus all abilities from under it.) Whenever this creature mutates, other creatures you control get +X/+X until end of turn, where X is the number of times this creature has mutated
To tell if your Pokmon cards are rare, check for special features like 1st edition stamps, holofoil designs, or limited prints
So take a look at your old collection and see if you have a little nugget of gold stashed away