Active when you have certain number pieces of this class on board, each level of the same synergy effect stacks 2: All friendly Knights have 25% chances in every 3 seconds to procast a damage-reducing shield which grants 75% of magic resistance and 30 armor for 2 seconds 4: All friendly Knights have 48% chances in every 2 seconds to procast a damage-reducing shield which grants 75% of magic resistance and 30 armor for 2 seconds 6: All friendly Knights have 70% chances in every 2 seconds to procast a damage-reducing shield which grants 75% of magic resistance and 30 armor for 2 seconds