"Fire had Lava Golem and Fire Spirit as atk buffs.
Life had Heal and Empathetic Growth as healing."
well those are those element's fortes, i wouldnt naturally associate mind with those, i would say one card of each is fine, two of healing is stepping on life's toes and two of +atk buffs is stretching mind's association with offense (fire is rather natural). i would strongly, very strongly, encourage the replacing of morale with either another effect or another card. as is, it is a nightfall/eclipse type card but for *all* elements. i think that meme + morale as a mono (morale would more than effectively double the number of memes on the field) is more of an issue than morale + fractal, but thats not to say i dont think that would be an issue as well.