Typical Earth Teams

Here are the best element combos with earth I know of, roughly ordered by preference. In most cases variants exist.

3E+2L is by far the best defense team you can build, and a good team all around. More generally earth can be used to help defend buildings thanks to its random nature.

5/5 Murmur of the CragsEcho AegisearthIce AgeTriple CyclelightEdenSolarisVerdoc and PhytoAvalonRigel
5/5 Murmur of the CragsEcho AegisearthIce AgeTriple CyclelightLumira and ApolloEdenSolarisVerdoc and PhytoAngus
5/5 Murmur of the CragsEcho AegisearthIce AgeTriple CyclelightLumira and ApolloEdenSolarisVerdoc and PhytoAvalonvariant for CoW defense
4/5 Murmur of the CragsEcho AegisSylvaEdenVerdoc and PhytoAvalonAngus
4/5 Murmur of the CragsEcho AegisEdenSolarisVerdoc and PhytoAvalonAngus
3/5 Flame DanceTriple CycledarkThe Depths WhisperEcho AegisearthTenebrisEdenVerdoc and PhytoMortBrustar
3/5 Murmur of the CragsEcho AegisearthThe Depths WhisperPulse of the AncientswaterHyperionEdenVerdoc and PhytoTidus and GeloAngus
3/5 Murmur of the CragsEcho AegisearthThe Depths WhisperTriple CyclefireEdenArajiVerdoc and PhytoAsherona and PyroAngus

Aside of 5E (five earth), all of those teams are only viable if you have two good totems. If you only have a good earth totem, stick to 5E.