mtg cards like coat of arms (Borderless) [The Lost Caverns of Ixalan Commander] #(For example Coat of Arms — Rulings,

That definition isn't perfect, but it's closer than it might seem

Blue decks tend to be slow and patient, gradually building up card advantage and other resources until they're ready for the endgame, which is perfect for a midrange-oriented, moderately powerful format like Commander

executive producer Stephen Ricossa explained that the game's creative vision had "missed the mark"

Nalia de'Arnise being three means the deck can come online very early and consistently, and the mana base, while simple, is very effective

Tapping a Swamp for mana gives you double the amount of mask counters on it

Especially since the printings of Ragavan, Nimble Pilferer and Dragons Rage Channeler, the steal a casting cost 1 nonland-permanent mode has become very important and overall buffed the playability of the card