Inspire by another post on the forum (I lost the link), I made flaming pigs and put them into Delenda Est. They are quite funny.
Player can train pig from corral and slaughter it for food or use 'Upgrade' button to set the pig on fire. The pig gets set on fire and can move 2x faster now.
It has a 'Flaming Pigs' aura that reduce attack and max health of nearby enemy elephants (war elephants and undomesticated elephants) by -20%. The inflamed pig loses health and dies within 5o se