Infinate mana

[Byerley121]

 {Nivix Guildmage} and  {Turnabout}. Need 10 mana to use this combo. If you have mana rocks to get more mana you need atleast 5 lands but prefebly 6.

[Chargingswadger]

You only need 9 I think

[particle]

You only need 9 I think

"you only need 9 mana for that combo, bro." -said no one ever.

[Remillo]

Well, technically, you only need 5 mana from lands and at least 3 mana from other sources.  You'll net 1 mana each copy, but it still works.