WOW! I never seen Ice Ball on third place of most effective troops, with outstanding 12% ... even if your overall damage by troops was only 13% it is quite surprising
You used Armageddon a lot or wha?
you killed 630K units, that means your Ice ball killed 9828 enemy units... if we take in consideration average HP / Leadership per unit - 350, your Ice Ball delivered cca 3439800 DMG (if you hold your mouse over the enemy causalities, it should show the HP/Leadership of your dead enemies... what would give us more precise calculations)