Solphim is a true Phyrexian Horror, doubling damage from the cards you control
Every color has access to it as a solid way to either make its creatures modal (via X-spell creatures that enter with X counters) or capable of growing into the late game
If you're curious to know which Commander Masters cards are the ones worth keeping (or the ones worth selling, if you're of the more mercantile mindset), then this list will provide you with an easy point of reference
Collector booster contents vary wildly between sets, so heres what you can expect from a Final Fantasy collector booster as an example: 3 foil commons 3 foil uncommons 1 foil basic land 1 non-foil showcase art uncommon 1 foil showcase art common or uncommon 3 non-foil rares or mythic rares with Booster Fun 1 card from the Through the Ages bonus sheet 1 foil rare or mythic rare that could be a colorful chocobo or a serialized gold chocobo
Look for reviews from other MTG players who have purchased the same or similar cabinets
1 Archangel Of Tithes The Tax Man Cometh Archangel of Tithes is the rare card that plays offense and defense equally well, helping you stay alive while making it much harder for your opponents to do so