Rashmi is fine. She's powerful, and she is herself a druid to try to get the Archdruid Combo online faster, but lends herself to a bit of a different deck - one that utilizes Wilderness Reclamation and Seedborn Muse to try and get more value. There's some oblique synergy there with running powerful enchantments alongside Argothian Enchantress and Verduran Enchantress (as well as stuff like Krosan Restorer, Arbor Elf, Hope Tender, Voyaging Satyr, and friends alongside stuff like Wild Growth), but that feels a bit too crazy. I definitely prefer her to your alternative option of Tatyova, Benthic Druid if you go with a generically powerful Commander who happens to be a druid though.
But for my money I actually think Ezuri, Claw of Progress is the strongest commander for a Druid army.
But for my money I actually think Ezuri, Claw of Progress is the strongest commander for a Druid army.
- Of the 157 druids available in your color identity (not counting Changelings), only 18 fail to trigger Ezuri.
- Ezuri provides the counters you want to make your little army of 1 and 2 power dorks actually threatening.
- Ezuri also makes it easier to "turn on" Rishkar, Peema Renegade and Incubation Druid, and does a great job super-charging Viridian Joiner, Marwyn, the Nurturer, Gyre Sage, and Devoted Druid to let you ramp into crazy-strong spells like Craterhoof Behemoth and Finale of Devastation and Genesis Wave.
RCRDaretti: Superfriends Forever RCR
WGBDoran: Ent-mootWBG
GGGMultani: Group Bear HugGGG
GB(B/G)The Gitrog Monster: Dredgefall DurdleGB(B/G)
RGWGahiji, the Honored Group Hug MonsterRGW
UB(U/B)Yuriko, Ninja Trinket AggroUB(U/B)
WUBRGAtogatog: Assembling a OHKOWUBRG