Devourer; A viability suggestion

This is a balance suggestion - it will make devourer less dominant on certain champions and not outshine Wit's End while making the item realistically viable on more champion within the highest elo bracket and competitive play. Basically the item becomes less solo queue only and can be played at all brackets and does not dominate lower elos with certain devourer picks.

So basically the idea goes: Stacks lower from 30 to 15. So by lowering the maximum damage from 60 to 45 and allow Sated to come into play with the lesser stack requirement just allows the item to realistically get purchased and used in competitive play and higher elo while at the same time weaken the item from being a strong snowbally item for solo queue with the weaker base value, but still has its multiplicative stat for the late game.