Charnel Serenade + Mana Echoes + Metallurgic Summonings + The Tenth Doctor

Mana needed: {7}

UBR identity

Commander legal

The 4 combo pieces

• Charnel Serenade
• Mana Echoes
• Metallurgic Summonings
• The Tenth Doctor

What must be in place

You control at least six creatures that share a creature type with the tokens generated by Metallurgic Summonings

How to execute it

1. Activate The Tenth Doctor by paying {7}, removing all time counters from Charnel Serenade.
2. Charnel Serenade triggers, causing you to cast it from exile without paying its mana cost.
3. Metallurgic Summonings triggers, creating a creature token.
4. When the creature token enters, Mana Echoes triggers, adding {C} for each creature you control that shares a creature type with the token.
5. Resolve Charnel Serenade.
6. Repeat.

What the combo produces

• Infinite colorless mana
• Infinite creature tokens
• Infinite ETB
• Infinite magecraft triggers
• Infinite surveil
• Put all creature cards from your library and graveyard onto the battlefield with finality counters on them