Hellkite Charger + Savage Ventmaw + Druids' Repository

Prerequisites

• Savage Ventmaw does not have summoning sickness.
• An opponent is unable to block and kill Savage Ventmaw and Hellkite Charger.

Steps

1. 1Declare Hellkite Charger and Savage Ventmaw as attackers.Druids' Repository's first ability triggers twice, and Savage Ventmaw and Hellkite Charger trigger once.
2. 2Resolve the Savage Ventmaw trigger, adding .
3. 3Resolve both Druid's Repository triggers, putting two charge counters on it.
4. 4Activate Druid's Repository by removing a charge counter from it, adding .
5. 5Resolve the Hellkite Charger trigger, causing you to pay to untap all attacking creatures and to get an additional combat phase after this one.
6. 6Repeat each combat phase.

Effects

• Infinite charge counters on a permanent
• Infinite colored mana
• Infinite combat phases