Make it so that TU is visible on Jebus: at least build it into magic... a map highlight, like in Dota - Reveal the fog of war - highlight a 5x5 square. 40 mana per spell..
Leveling a Barbarian with Tactics and Earth is an option, though it doesn't always provide enough of those same ducks or giants from workshops, angels from cons, which with Tactics and oils would counter TU's ranged units..
Otherwise it's like - leveled a hero well with Earth for example.. saw that it won't help.. but there's nowhere to level a new one)