Round table

It might be too simple, but when taking level 7 dwellings on home territory from week 1 with speed +10 (dragons, angels,), you need to place a 2x-cell creature in the 4th stack (center); dragon-angels will move first and immediately kill this creature, thereby putting their own bodies in the way of a hail of arrows (if playing as elves, it's advisable to take 1 dendroid, which will allow you to gain one more turn).
P.S. how to place dragons in the Dragon Utopia\hive so that they don't breathe on their own?