They all get +2/+2 for each Aura attached to them
Although white has always been good at dealing with creatures efficiently, with cards such as Swords to Plowshares, Path to Exile and Terminus, noncreature permanents have always been an issue
By my count there are 5614 unique foil and non-foil out-of-game extra cards
Olivia, Opulent Outlaw Olivia, Opulent Outlaw is a little better than Vihaan, Goldwaker, since it has synergies with outlaws and Treasure, but it also creates its own Treasure tokens to begin with
The Pioneer version is fairly defined and I would just cut four flex slots to fill in the curve with Curtains against other aggro decks
For example, during a Time Spiral Remastered Limited event, you can't add Relentless Rats from your personal collection