Although decks are anything but straight-forward these days, I’m planning on doing just that here.
Of course, we don’t have that many werewolves spoiled yet, so there’s probably plenty of other options as well. There is one uncommon werewolf, which enables the use of mana without having to cast spells pretty well, but before there’s enough stuff for it to enable, I’m staying away from that theme.
I think the best approach here, is simply to curve out and beat down, but because of Arlinn’s abilities, I’m bringing in the classic [scryfall]Den Protector[/scryfall] + [scryfall]Deathmist Raptor[/scryfall] package. Its quite resilient and strong on its own, but giving extra power to Mother is just great and giving any Deathtouch creature Trample works very well.
The deck needs removal as well, so I’m thinking [scryfall]Draconic Roar[/scryfall] + [scryfall]Thunderbreak Regent[/scryfall]. Four dragons won’t be enough to always get value from the Roar, but it’ll happen plenty enough.
Then we need to fill in the curve. For that purpose, I think [scryfall]Sylvan Advocate[/scryfall] and [scryfall]Nissa, Vastwood Seer[/scryfall] do some work, but we also need a good five-drop to follow Arlinn (although admittedly it will sometimes be awkward because of her two distinct states). Maybe [scryfall]Harbinger of the Hunt[/scryfall]? It hasn’t seen any Standard play thusfar, but it could definitely work, depending on the kind of removal in the new format. Dealing seven with haste seems good, anyhow.
How about [scryfall]Elvish Visionary[/scryfall] to round out the deck? Any body is good with Arlinn and getting those extra cards is always good.
So, here’s a first version of the deck, with a very poor landbase, but we’ll get more lands, so that’ll probably get better.:
4 Elvish Visionary
4 Sylvan Advocate
4 Den Protector
4 Deathmist Raptor
3 Nissa, Vastwood Seer
4 Thunderbreak Regent
4 Harbinger of the Hunt
4 Draconic Roar
4 Arlinn Kord
4 Cinder Glade