I just beat Prophet Ezekiel using about 300 stamina with the following formation with an overall power of 288m:

Flavius Leader Blank
Blank Blank Blank
Herja Lance Queen P
Sub: Khan

Also here are the pertinent stats you may want to know. Only Khan/Queen P are in real detail due to the fact it becomes impertinent for the others:

Khan- 12 Stars
80596 Patk
84019 Satk
54469 Pdef
43448 Sdef
204852 HP
205 Block
230 Crit
Venge 12, Endurance 11, Advantage 12, Precise 11, Flintiness 10, Reliability 11, Resist 12, Burli 11

Queen P- 12 Stars
74320 Patk
71836 Satk
50261 Pdef
41458 Sdef
188312 HP
245 Block
208 Crit
Venge 12, Endurance 11, Advantage 12, Precise 11, Flintiness 10, Reliability 11, Resist 12, Burli 11

Lance- 14 Stars
75773 Satk
210 Crit

Flavius- 12 Stars
69034 Satk
185 Crit

If you would like to know more info just let me know.