I had my experience on facing a three-color Retreat Control deck on one of my previous FNM tournaments. It was a hard matchup if you aren’t fast enough to kill them before they setup the enchantments. So far, Abzan is the best combination of this archetype. Here is a recent version played by Nikolas Carpenter:

Maindeck
3 Blighted Woodland
2 Canopy Vista
5 Forest
2 Plains
3 Shambling Vent
2 Smoldering Marsh
3 Swamp
4 Windswept Heath
4 Wooded Foothills

2 Elvish Visionary
1 Nissa, Vastwood Seer
3 Oblivion Sower

4 Abzan Charm
1 Nissa’s Renewal
3 Painful Truths
1 Planar Outburst
1 Ultimate Price
1 Utter End

1 Quarantine Field
4 Retreat to Emeria
4 Retreat to Hagra
4 Retreat to Kazandu
2 Stasis Snare

Sideboard
2 Gaea’s Revenge
2 Murderous Cut
4 Siege Rhino
2 Stasis Snare
2 Surge of Righteousness
3 Transgress the Mind