The Tenth Doctor, Mana Echoes, Venture Forth, and Rite of the Dragoncaller

Prerequisites

• The Tenth Doctor on the battlefield
• Mana Echoes on the battlefield
• Venture Forth in exile
• Rite of the Dragoncaller on the battlefield
• available

Steps

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

Results

• Infinite ETB
• Infinite colorless mana
• Infinite creature tokens
• Infinite magecraft triggers
• Near-infinite landfall triggers
• Put all lands from your library onto the battlefield