Possible Buffs for Pirates/ Legendary units

Like seriously here me out here Pirates have good gold generation but their units don't get anything other than extra gold each round maybe an aoe damage buff per pirate unit used. Also more pirate units maybe Twisted fate Illaoi and how about Tahm Kench. legendary units should have not one but 2 abilities to honesty justify their use because those units honestly have no use other than to be sold for 5 gold so in retrospect. Buff pirates and make Legendaries not potatoes who're just used in niche situations>[sg-miss-fortune]