Here are some less expensive alternatives for key cards in your deck: Creatures Enchantments Artifacts Instant/Sorceries Lands
For example, if you control The Ozolith ("Whenever a creature you control leaves the battlefield, if it had counters on it, put those counters on The Ozolith.") when Zack Fair's last ability resolves, you'll put the appropriate number of each kind of counter onto both The Ozolith and the target creature.
Creatures with bestow can be cast as creatures, just like normal, but they can also be cast as Auras targeting a creature
With excellent stats across the board and an Evasive feature, however, it's no surprise that TCGPlayer puts her value at $208
After a sticker is removed, it goes back to the sticker sheet it came from
Trust me, understanding Pokmon card grading can make all the difference when it comes to making the most from your cards