The fact that it costs 3 mana up front, is easy to deal with, can't attack well, and is an expensive activation without the triple draw makes it seem a little dicey
2 Last Cannon 2 Mouse Armor Booster pack rarity breakdown: 2 Rares, super rares, or legendaries 3 Uncommons 6 Commons 1 Foil card of any rarity Related Products
For grading strategy, see our PSA grading investment guide
I put together a set list with quantities when I wrote my blog post about them a couple of months back (link) and most of the commons are missing completely
includes an ultra-rare trading card that is highly valued by collectors
After Ether's ability resolves, the next instant or sorcery spell you cast that turn will be copied whether or not it has targets and whether or not you spent the mana added by Ether's ability on that spell