The Tenth Doctor + Mana Echoes + Venture Forth + Talrand, Sky Summoner

The Tenth Doctor

Mana Echoes

Venture Forth

Talrand, Sky Summoner

How it works

1. Activate The Tenth Doctor by paying 7, removing all time counters from Venture Forth.
2. Venture Forth triggers, causing you to cast it from exile without paying its mana cost.
3. Talrand 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 Venture Forth.
6. Repeat.

This clever loop turns the time-traveling ability of The Tenth Doctor into an engine for infinite mana and board state. By using Timey-Wimey to rapidly strip the time counters off Venture Forth, you cast it from exile repeatedly, which feeds Talrand, Sky Summoner's triggered ability to flood the board with Drake tokens. Each new token then fuels Mana Echoes to generate enough colorless mana to pay for The Tenth Doctor's ability, allowing you to repeat the cycle while Venture Forth puts every single land from your library directly onto the battlefield.