You can untap your entire team to facilitate combos, squeeze extra triggers from cards like Kiki-Jiki, Mirror Breaker, or simply surprise your opponents with unexpected blockers
Whenever you place a sticker, you can choose to spend your tickets on a cheap sticker or save up to buy a stronger sticker in the future
We knew we wanted the Theros battle to reference enchantments, as it's such a core part of the plane, so we made Ephara into an "enchantress" (a term for a creature that draws you cards when you play enchantments)
Eldrazi are not going to get the same kind of inevitable drip feed of new playables over time being a flavour thing rather than a fundamental part of the game
I wouldnt say its a bad play, but it is still above the baseline of what you really want to be paying for that extra card (2 mana)
The biggest collector of vehicles on Avishkar is also the largest