I love having distinct thematic abilities for the four elemental types -- especially "splash" damage for Water and retribution for Fire!
IMHO:
- the +damage for Earth is strong but kinda boring; I would prefer to replace this with something situationally awesome like guided strike or immune to monster retribution as others have suggested.
- while Change #1
slightly improves the incremental benefit of legendary over relic, it's still very small.
Proposal: I think legendary Iktomi's should remove the restriction altogether and just let you polymorph as much as you want into as many different creature types as you want. I'm a bear! I'm a shark! I'm a fire elemental! I'm an earth elemental! I'm a shark again!
Primarily I want this because it's
fun.

It does also add power by enabling the player to use one form for offense and a different form for defense (thus actually taking advantage of the DR), but I think that's desirable and appropriate for a legendary.
Alternatively, if you feel that's too much, Iktomi's allowing polymorph 1x/
round with no restriction on types would still be better for fun and flexibility than merely 2x/
room. But I'd much rather have 2x/
round.
(my perspective: I main Cleric, Druid, and Bard in that order. I have crafted Druegar's and Widseth's, but only the relic Druid necklace because the difference from relic to legendary is so underwhelming. So far based on the V2 updates, that's not likely to change for me.)