Temur Sabertooth + Gaea's Cradle + Great Oak Guardian + Ley Druid

Temur Sabertooth

Gaea's Cradle

Great Oak Guardian

Ley Druid

How it works

1. Activate Gaea's Cradle by tapping it, adding at least eight .
2. Activate Temur Sabertooth by paying 1, returning Great Oak Guardian to your hand.
3. Cast Great Oak Guardian by paying 5.
4. When Great Oak Guardian enters, it triggers itself, untapping all creatures you control and giving them +2/+2 until end of turn.
5. Activate Ley Druid by tapping it, untapping Gaea's Cradle.
6. Repeat.
7. If you control nine or more creatures, this combo will net infinite green mana, which you then may activate Temur Sabertooth any number of times and recast any creatures castable with green mana any number of times, effectively "blinking" your green creatures any number of times.
8. You may also activate Ley Druid any number of times.

This magnificent mana-engine transforms a wide board state into boundless green energy through a recursive dance of paws and leaves. With Gaea's Cradle tapping for an enormous sum of green mana—thanks to a board populated by your creatures—you have the fuel needed to power Temur Sabertooth's bounce ability. By returning Great Oak Guardian to your hand and recasting it, its enter-the-battlefield trigger untaps everything you control, including Ley Druid. That untapped Ley Druid then returns the favor to Gaea's Cradle, resetting your land for another cycle while netting a surplus of mana.