I must kill the 2 allied dungeons. I also go for the transfer creature. On this map you must know how the AI will react to your movements and dig in consequence. The blue AI also must dig quickly enough to the portal.

0:53 I drop the imps to slow the enemy imp progression. 2:01 I killed a creature instead of hitting the heart, I hate when it happens. 2:40 I let some unclaimed tiles so the imp doesn't take the bonus and I don't loose time chasing him.