2 Words to use with hydra

At this point universal scepticism begins to raise its hydra head, and to grin at the dogmatist's discomfiture.

Or grant him victor, still his hopes must fail, Who, conquering, would not for himself prevail; The faction whom he trusts for future sway, Him and the public would alike betray; Amongst themselves divide the captive state, And found their hydra-empire in his fate!

2 Words to use with  hydra