Collective Voyage

Group ramp dressed as a single-green sorcery, and the most generous one ever stapled to Join forces. The mechanic builds one communal mana pool, then hands the result to the whole table: X is the total everyone paid, and every player searches out up to that many basics regardless of who funded it. That is the wrinkle the spell lives inside. A player who contributes nothing still gets the full count, so the caster who seeds the pool is effectively paying for everyone's ramp at once. The result is symmetric on paper but rarely in practice: the green deck has perfect information about how much it wants the board state, while opponents must weigh whether matching their own mana is worth handing the architect the same acceleration. Most pods blink, leaving the caster to fund it alone for a Boundless Realms-scale land dump at a fraction of the rate; the pivotal games are the ones where a desperate opponent pays in to keep pace and inadvertently doubles the very mana advantage they were trying to contain. The basic-land restriction and the tapped clause are the brakes: no fetching duals, no untapped mana the turn it resolves, so the payoff is a ramped position rather than an immediate explosion. It belongs to the small family of communal-mana spells that treat the multiplayer table itself as a resource, rewarding the player who can read a pod and price the bribe correctly.