Timing this one is tricky, as theres definitely some tension with when you should play it (earlier is better for the mana rock aspect, but it could lead to you answering irrelevant threats)
If your Eye of Nidhogg-enchanted creature is killed in combat (or its hit with some targeted removal), you can thankfully return the aura from the graveyard and back into your hand
Kodama of the West Tree Green has plenty of ways to modify creatures, making Kodama of the West Tree a solid option for a mono-green commander
With Ashaya on the field, the majority of the cards in your deck likely trigger landfall abilities when they enter the battlefield
You can qualify for these events through Regional Championship Qualifiers, hosted at WPN game stores or larger Magic events
Taeko, the Patient Avalanche This four-mana mono-Blue 4/5 Turtle Ninja ETBs tapped, and then when another dork you control leaves without dying, you can scry 1 and toss a +1/+1 counter here