Turn 1 (of combo starting): Rhys the Redeemed (Equipped: Helm of the Host). Host makes a Rhys copy with haste (at combat so this would be during main phase 2.) Tap Rhys. Make a second Rhys copy. Tap first copy (with haste.)
Turn 2: Rhys. 4 Rhys copies from previous turn. Rhys copy this turn. Tap Rhys. (5 more.) Tap Rhys copy. (10 more.) Tap 2nd Rhys copy. (20 more.) Tap 3rd Rhys copy. (40 more.) Tap 4th Rhys copy. (80 more.) Tap 5th Rhys copy. (160 more.)
•Turn 2 Total: 161 Rhys, the Redeemed. + Any creature tokens already in play.
As for more information I run an elf deck that at the end of a turn playing 5 or more cards I usually have 40 mana left in my mana pool.