The +1/+1 and haste will make it better than Fires of Yavimaya, and the additional options of Threaten or make a quintet of 4/4 Dragons are both really strong abilities too
Erebos seems powerful to me because his ability can actively contribute to achieving his devotion threshold
My decklist shored up whites weaknesses by leveraging the draw from Conjurers Mantle and Rammas Echor, while ensuring we could survive long enough with lifelink synergies
Of course, having some way to benefit from the cards in your Graveyard makes this card even better, so its a solid pickup for Reanimator and Spellslinger strategies alike
Phylath, World Sculptor, Obuun, Mul Daya Ancestor, Radha, Heart of Keld, Mina and Denn, Wildborn, and all the Omnath commanders are just some of the many lands matters commanders
What makes Solitude so powerful in Modern is that the format is slow enough and the lack of Wasteland means that youre usually hardcasting them instead of evoking them, which when you combine it with blink effects like the previously mentioned Ephemerate and Yorion, Sky Nomad, is an extremely potent card advantage engine