As mentioned, when do we see the ban on Elk Daddy J? If Otter Jesus died for our sins within seconds, isn't this more toxic by proxy of it's own ability and scenarios outlined above by others?
Zirda is a cute fox and would go really well in Kenrith - yay for more redundancy.
Song Of Creation has beautiful art. You might not want to drop it right away, but as long as you're not facing mill, I feel it combos well with
Library Of Leng if you have the patience to arrange your hand back on top of your library at the end of your turn. Though it does create a shields down scenario, so maybe it's equally "taxed" for what it does. Could be good in Xyris.