I enjoy Fog of War more but haven’t encountered either mode many times yet. My strategy for Fog is simply to set up as impenetrable a front line as possible and then pile ranged damage behind it knowing they’re safe. Earth is great for setting up an easy double heal tank situation, or even triple heal if the mana cap is high and you have a strong Spirit of the Forest. Blast attacking creatures can also be more useful in this format as they are the only ones capable of dealing some damage to the team behind a strong front tank and possibly upsetting it.