mtg upkeep cards About cumulative upkeep... : r/mtg Rules Text: Upkeep, you gain,

While there may be other cards that offer similar effects, Finale of Devastation's versatility and potential for a game-ending play make it a strong contender for inclusion in decks that can support its mana cost

This is yet another $5 card

(2020-11-10) If your commander is a card that has no colors in its color identity, Arcane Signet's ability produces no mana

If you do, they create a tapped 1/1 blue Fish creature token before its other effects.) Exile target nontoken creature

As for the other three (Evolution SageEvolution Sage, Metallic MimicMetallic Mimic, and RealmwalkerRealmwalker), while they're creating synergy with the deck, I would have preferred something a little more oceanic, or at least from Ixalan itself, like Roaming ThroneRoaming Throne, for example

In fact, Landfall is one of the most popular builds of Yarok, providing value ramp to ensure you can keep replaying the Elemental Horror even if they deal with it