This is a 5-drop that's 5/5 and that's on-curve for the game
Removal is so good in limited, even five-drop removal spells see play, let alone strong two-mana ones like Candy Grapple, so draft players running black must take cards like this right away
Your chances for each in place of the foil common are: Sol Ring (Human): Less than 0.3% (1 in 333 packs) Sol Ring (Dwarven): Less than 0.25% (1 in 400 packs) Sol Ring (Elvish): Less than 0.1% (1 in 1,000 packs) Sol Ring (Double Rainbow Foil, Human): Less than 0.03% (1 in 3,333 packs) Sol Ring (Double Rainbow Foil, Dwarven): Less than 0.025% (1 in 4,000 packs) Sol Ring (Double Rainbow Foil, Elvish): Less than 0.01% (1 in 10,000 packs) Your chance of opening any form of a Ring of Power is 0.715%
Yes, the outer layer is waterproof, providing extra protection for your cards
Whenever you cast a historic card, draw a card
A passive playstyle is also possible, but often led to defeat in the first game attempts, especially against combo decks