Requires

Marath, Will of the Wild must be on the battlefield. Devoted Druid must be on the battlefield. Hardened Scales must be on the battlefield. Primal Vigor must be on the battlefield. Marath has at least two +1/+1 counters on it. Devoted Druid does not have a -1/-1 counter on it. Mana needed:

Steps

1. Activate Devoted Druid's first ability by tapping it, adding .
2. Activate Marath by paying and removing a +1/+1 counter from it, putting four +1/+1 counters on it.
3. Activate Marath by paying and removing a +1/+1 counter from it, putting four +1/+1 counters on Devoted Druid.
4. Activate Devoted Druid's second ability by putting a -1/-1 counter on it, untapping it.
5. Activate Devoted Druid's first ability by tapping it, adding .
6. Repeat from step 4 one additional time.
7. Repeat from step 2.
8. Once you have infinite +1/+1 counters on Devoted Druid and Marath, you may use them to get infinite green mana, Elemental creature tokens, and +1/+1 counters, and/or deal infinite damage to any target(s).

Results