Tacullu is not like other summoners that strongly lead their faction from the start or that want to join the fray of combat as soon as possible. Instead Tacullu is like a "final boss", sitting in the back watching the action going while occasionally helping here and there. Then after all the dust has settled, Tacullu comes forth to finish the job. Her events and Mind Capture ability are particularly strong in the endgame.
However she does have three important roles early on:
- The first is to slow down enemy offensives. Some factions will try to rush the Breakers, and Mind Capture can quickly slow down the tempo of an early aggression by both getting control of a unit and taking a spot (the one where the unit was), crippling and slowing down the enemy offensive.
-The second is to help the Breakers take control of the opponent summoning spots, by capturing enemy units, thus limiting opponent options.
-Finally the third is to give Breakers a third attack where they normally would have none. Sometimes the Breakers will create tight spaces with few possible avenues of attack and Mind Capture can create a new avenue once the enemy unit is controlled.
Tacullu's Mind Capture is not a "straightforward strong" ability, compared to other summoners' abilities. Its power isn’t that much economically, but rather positional.
In general if the game enters a slow state you are better off just killing the enemy unit, but if the game is at a fast pace, Mind Capture allows you to gain tempo and positional advantages like no other.