If another permanent becomes a copy of a leveler, all of the leveler's printed abilitiesincluding those represented by level symbolsare copied
You have to have that additional land in your hand
This blue, black, and red Commander helms the Ahoy Mateys deck, which focuses on sticking Pirate cards in your graveyard and then bringing them back later in the game
So for example, green could have some variation on Autumn's Veil: Spells you control cant be countered by purple spells this turn, and creatures you control cant be the targets of purple spells this turn. At one point, a purple card was designed like this, according to WotC: 1P Instant Choose one: Counter target green spell, or destroy target green permanent, or destroy target Forest. Purple would hypothetically add four 2-color combinations (WP, UP, BP, RP, GP), though green+purple would be rare since those two colors would be hard enemies
Play Booster Display (36 sobres) Duskmourn
Without the need to waste card slots on land and the ability to cast occasional worthwhile spells you could put a lot of old school decks under tremendous pressure as they were stuck with lands and removal that didn't impact the game