when the game changed and viagra came into the picture, I tried to recreate the bonuses I had with all the toys. I use a full water deck so I boosted my water potions to +85% and my HP +100%. I'm glad for the HP boost (I'm over 50k which helps alot with the world bosses) but if I could do it over I would scale back the water percentage so I have more for the other elements. Currently my earth is +40% , fire and light are both +30% and dark is only +15%. That hurts when using those cards in colosseum and the world bosses portal, although seriously the dark portal is ridiculous with that friggin elephant hitting you with over 60k on the 1st attack.
I agree with fappyking that spreading it out is probably the best way to go.