Brawl Legal Vintage Legal Timeless Legal Commander Legal Pauper Not Legal Oathbreaker Legal Penny Legal Titania, Gaea Incarnate Color Indicator: Green Legendary Creature Elemental Avatar Vigilance, reach, trample, haste Titanias power and toughness are each equal to the number of lands you control
Looking back at past Standards, some have had a lower average price thanks to one really cheap deck that is essentially an outlier (a good example of this is the $85 Mono-Red deck back in 2015 Standard, which helped hide some really expensive decks in the same format and make the format look cheaper than it actually was)
Gimli, Mournful Avenger Gimli, Mournful Avenger really lives up to its name
When it dies, every player may pay any amount of mana and get that many 1/1 Squirrel tokens
Valued at just $6 in the final week of August, the card has since risen to a much more substantial $15.40
I had arrived at the 20% mark through experience however your explanation and logic is more convincing