The first player doesnt draw on their first turn, the hand size limit is 6
Treasures are already created at a good rate thanks to cards like Brass's Bounty or Smothering Tithe, and since you sacrifice them eventually, each Treasure token makes your opponents lose 2 life
Both of these cards are going off in Pioneer and work with the same basic combo strategy, stuffing your deck full of high mana cost cards that either have cost reductions (Leyline Binding) or can be exploited in other ways (ramping off Beanstalk Giant)
Moreover, by paying it can buff at instant speed our Dragons with +1/+0 until end of turn so it can be a finisher
Grass decks need to lean on healing loops or multi-type synergy to survive these counters
But if people are lead to believe that something like this represent top tier faking well, thats where I need to step in: Pokmon Aaah