I could not find the fight I used void dragon.
But I like the dragon group summoner and monsters pretty much. Whenever there's chance ,I will use them.

https://m.splinterlands.io/#/battle/game/process/sl_b3719dac92176fa4da1f633848aca544

Here's another one I used dragon summoner.

https://m.splinterlands.io/#/battle/game/process/sl_30fd04987425902323b0b45a1f70b433