In my experience, the race to 20 points usually takes 20-25 minutes for a single game, longer when Im playing against my daughter
Banning Hiram slows Sapphire decks down in the mid-game by lowering the consistency of the item-return play
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
So it is well positioned in the current meta and that is evident by it's top win rate
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 )
Yes, treasure tokens enter the battlefield and trigger ETB effects based on their traits like artifacts or tokens