In my opinion Hydra is the best melee monster among all neutral tanks. This card is a universal card because he's good at both defense and attack. With retaliate ability he can attack back to the melee attacker and every time melee monsters attack him he will reduce 2 health of the enemy with his thorns. It's also hard to take down this card because of the healing ability and high health. Hydra has tramp ability where if he kills the first enemy then he will attack the next one. Best game modes to use this card are standart battle, sneak attack mode etc