Yes, treasure tokens enter the battlefield and trigger ETB effects based on their traits like artifacts or tokens
I am not really thinking that's going to change
In fact, some of those even show up in the MTG crossover on cards like Yiazmat, Ultimate Mark ( Final Fantasy XII ), Omega, the Heartless ( Final Fantasy XIV ), and Absolute Virtue ( Final Fantasy XI )
Piru, the Volatile With Piru, the Volatile around, you can opt to pay the mana and keep a 7/7 flying and lifelink dragon around, or let it die to deal 7 damage to each nonlegendary creature
Adding the age counter and requiring the upkeep cost happens on the same trigger
In my experience, the race to 20 points usually takes 20-25 minutes for a single game, longer when Im playing against my daughter