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

Prerequisites

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

Steps

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

Effects

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