I KNOW HOW I DO IT ALL THE TIME
if you want a short 1 read vampires just got carried away :D XD
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Note: vicky uses alot of sp also if you are fire using vicky it is harder

Without attacking Burst
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round 1:Fiery attack on player or vicky (if it is a fire char dont use on player)
round 2 : again with round 1 but the other person (do this if not fire so u can use hot fire or use it on cow)
round 3: use it on cows (or other bursting pet NEVER ON FIRE CHAR)
round 4 :fiery attack on other cow
round 5 (if there is another beetle) : fiery attack on cow
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With attacking
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Note: must be 0spd
round 1:Fiery attack on player or vicky (if it is a fire char dont use on player)
round 2 : again with round 1 but the other person (do this if not fire so u can use hot fire or use it on cow)
round 3: use it on cows (or other bursting pet NEVER ON FIRE CHAR)
Round 4 : normal attack
round 5 (if there is another beetle) : normal attack
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how to set on er:

1)Click on pet er set up
2)drag fiery attack on hp(or sp) icon and choose ally
3) set the hp above cow hp(or sp) so it always uses it ( IMPORTANT: MAKE SURE THE FIRE IS NOT AROUND THAT HP OR VICKY WILL USE IT ON THEM)

Thats it i know it is long but i showed it in detail and how to do it without er just in case your er disappers in 30 days