The first example is discard as a cost, and the latter is a discard effect
While I cant find anything confirming why this is, its likely because its on the Reserved List, so Wizards is hesitant to errata something they cant reprint
Heroes and Villains Revealed Early spoilers have revealed a trio of headlining heroes as powerful MDFCs
But then the ability, unlike the other members in the cycle, does not give the Adversary +1/+1 tokens, but valor ones
Charizard cards in Pokmon TCG are usually the most valuable ones in the game, making this one of the primest cards of the set
Unfortunately, Volume 1 (the first Official Card Game Set) was pushed back by one month for last-minute changes