Some abilities are just sign-posted to be linked with other cards in the set, like with the aforementioned Jim Hawkins, Space Traveler card, and this card is almost definitely built exclusively to get yourself a free Lucky Dime, the seven cost item that no doubt plenty of decks will be building around this set
7 Fight Spells Fight decks are built around making your creatures fight other creatures as a way to remove them
Interaction Every proper Commander deck needs some way to interact with its opponents, even if its as simple as Mana Drain
Some decks love sending lands to the graveyard, but the land sacrifice ability isnt adding too much to the equation
Neriv works closely with the people of the Mardu and is often an active participant in their daily lives, seen around camps when not scouting the skies
Annex Sentry Ive learned to fear any Oblivion Ring-style ability long ago, even when its limited in effectiveness