During the main Phase, players can place a card into their inkwell, counting as one ink drop as long as it has an inkwell icon in the top corner
I can imagine winning with a big Stella, sure, but I can also easily imagine that not working, which is why the deck doesnt support that plan, really, and why other cards which also do that plan, Malevolent Whispers and Mark of Mutiny are left out
It definitely plays well in decks running Astral Slide
The inner box with two rows and six dividers makes organizing your cards easy
I would argue no, as long as whatever you do between the two remains distinct
If youre doing custom commanders, themed reskins, tokens, or you just want your Sol Ring to look like a cursed artifact from your playgroups lore, this is the smoothest on-ramp