How many lanterns does it take to put down Mangog

1. Hal
2. + Kyle & Guy
3. + Alan & John
4. + Sinestro & Arkillo
5. + Atrocitus & Saint Walker
6. + Larfleeze + 10 Orange Lantern Corps
7. + Sodam Yet Ion

The teams stack (example: team 5 has teams 1-4 in it)
No prep or BFR
In character
Fight in Asgard (no asgardians there)

Round 1: Silver Age Mangog
Round 2: Current Mangog

There's not enough of them... Double it and it's a maybe

1 Silver Age Mangog clears it
2 1-6 Lnaterns

Does Alan get the full power of the Starheart?

All the corps