Typical Water Teams

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

5w is the most popular nowadays, and a good team for beginners who have chosen water.

5/5 Murmur of the CragsTriple CyclewaterLast FlashPulse of the AncientslightLumira and ApolloHyperionSolarisTidus and GeloNova
4/5 Murmur of the CragsTriple CycleHyperionArajiTidus and GeloNovaSigurd
4/5 Murmur of the CragsTriple CyclewaterHyperionMairiTidus and GeloNovaSigurdmost popular defense for the cow gate of ice
4/5 Last FlashTriple CycleTenebrisHyperionMairiTidus and GeloNova
4/5 Murmur of the CragsTriple CyclewaterLast FlashPrimal ZealearthHyperionEdenVerdoc and PhytoTidus and GeloNovaanother good defense, thanks to randomness
4/5 Murmur of the CragsTriple CyclewaterLast FlashPrimal ZealfireHyperionArajiTidus and GeloAsherona and PyroNovacan beat many earth+light on auto (not with Lumira)
4/5 Murmur of the CragsPrimal ZealdarkIce AgeTriple CyclewaterTenebrisHyperionTidus and GeloMortBrustar
3/5 Flame DancePulse of the AncientslightMurmur of the CragsTriple CyclewaterHyperionIyariSolarisTidus and GeloRigel

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