Several online resources, from price tools to Pokmon TCG communities on Discord or Reddit, can help you compare a cards valuation to past sales or trades
If I wanted to pay six mana to draw a card, I'd be playing Urza's BlueprintsUrza's Blueprints
So rather than being bonuses, they are just more normal mythics that you need to open to complete the set
If you can't get it on time, your Pokeballs are almost guaranteed to fetch one
There have been plenty of discussions in the past about the dangers of a banned-as-companion list: it's one more list you have to track and adds complexity, among other reasons
If prices are trending down and youre motivated to sell, you may need to choose the lower side of the current market value during sale price determination