Since Wizards of the Coast put up an image of the products over here, we pretty much know every single main commander already: The resolution is too small for me to read, but the good folks at Reddit have made early attempts at deciphering them
And well, right, you might end up picking cards that do not become meta but, better be safe than sorry, dont you agree?

July 2022 season rewards and rank resets (lasts until 30th of July) Bronze reward : 1 Alchemy Horizons: Baldur's Gate pack Silver reward : 1 Alchemy Horizons: Baldur's Gate pack + 500 gold Gold reward : 2 Alchemy Horizons: Baldur's Gate packs + 1,000 gold + Owlbear Shepherd card style Platinum reward : 3 Alchemy Horizons: Baldur's Gate packs + 1,000 gold + Owlbear Shepherd card style + Stroke of Luck card style Diamond reward: 4 Alchemy Horizons: Baldur's Gate packs + 1,000 gold + Owlbear Shepherd card style + Stroke of Luck card style Mythic reward: 5 Alchemy Horizons: Baldur's Gate packs + 1,000 gold + Owlbear Shepherd card style + Stroke of Luck card style Earning ranks through Events in MTG Arena Additionally, there are events introduced throughout the season that have entry fees that can be paid either with gold or the iAP currency gems, although there are some events that are gem-exclusive

1 foil promo card featuring Mega Charizard X ex, 4 Pokmon TCG booster packs, A code card for Pokmon TCG Live (Packs include 2 Phantasmal Flames, 1 Mega Evolution Base, and 1 Destined Rivals booster packs) 4 Pokmon TCG booster packs
The best part is the modality of the triggered ability
While it offers a versatile set of options, other dungeon cards like Tomb of Annihilation may provide more immediate value in certain situations