Grand Warlord Radha + Hellkite Charger + Savage Ventmaw

Grand Warlord Radha

Hellkite Charger

Savage Ventmaw

How it works

1. Declare Radha, Hellkite Charger and Savage Ventmaw as attackers.
2. Radha, Savage Ventmaw and Hellkite Charger trigger.
3. Resolve the Savage Ventmaw trigger, adding .
4. Resolve the Radha trigger, adding at least 3.
5. Resolve the Hellkite Charger trigger, choosing to pay 5 to untap all attacking creatures and to get an additional combat phase after this one.
6. Repeat.