Most of these are older cards coming out of China
First, most fungi require three counters instead of two, so Sporoloth Ancient allows you to create Saprolings with one less counter, which is very relevant
Party first debuted in 2020s Zendikar Rising set and leans heavily on classic fantasy party composition, namely the typical Dungeons & Dragons lineup of Warrior, Cleric, Rogue, and Wizard
Aether Vial, Chalice of the Void, Damnation, and Snapcaster Mage are all Modern cards first and foremost
First, some raw numbers
The same problem arises: The best decks use these resources well, so the gameplan disproportionately helps the decks that need the least help to begin with