I was thinking of replacing Skyreaping with Return to Earth for the versatility post board.

Ermahgerd this deck sucks so much and is totally worthless! derpaderpaderp

This is a very outdated list - generally, the reactive spells in the sidedeck are terrible.

4 eidolons is too much, add one more chord and 1 nylea's disciple to help vs aggro. Replace 1 elvish mystic (the most disappointing topdeck in the world) with 1 Karametra's Acolyte to have some more mana. 4 coursers is also a bit much, replace one with Reclamation Sage to give yourself some more Chord toolkit.

Skyreaping is unnecessary when you can have 1 more arbor colossus instead if flying is a problem. Replace one reaping with the arbor and the other with 1 Reclamation Sage.

• 3 Ranger's Guile for 3 Singing Bell Strike - additional combo element that replaces nykthos or removal when needed.

That should be good for now.

I did not see the bellstrike untap thing as a combo element but you're absolutely right. The reason I originally had ranger's guile in the list was to use it against the control decks to keep my dudes on the field. I'm still worried about that matchup.

The extra chord and sage seem like a good idea considering G/W devotion being popular. Maybe a single roast for the stray rhino? I'm not sure

If you are worried about that matchup, 2-3 Whisperwood Elemental in the 75 should be enough. (1 main to find with chord and 1-2 side). This will deal with all manners of control. I went up against 4color whip, UWR, Abzan and Sultai control no problem. If you still have problems, add 2 Nissa, Worldwaker to the side - amazing to land vs control.

You want things that are fetchable with chord to deal with rhino. Your best bet vs hthe rhino is actually Temur Sabertooth - blocks for days. Non-aggro abzan is not a problem for this deck - it is both faster and more resilient.

However, the cards that f*** you are Rakshasa Deathdealer, Anafenza, the Foremost (both are incredibly hard to block and drain your life quickly) and (probably less likely now) Wingmate Roc (makes racing almost impossible). Also, ub control's Perilous Vault is a big problem.