Near-infinite colored mana, Put all basic lands from your library onto the battlefield tapped, Near-infinite +1/+1 counters on a creature
Activate Mossborn Hydra using Fertilid's ability by paying and removing a +1/+1 counter from it, causing you to search your library for a basic land card and put it onto the battlefield tapped.
When the land enters the battlefield, Mossborn Hydra triggers, doubling the number of +1/+1 counters on it.
Activate Mossborn Hydra twice using Crystalline Crawler's first ability by removing two +1/+1 counters from it, adding .
Repeat until there are no basic lands in your library.
Component Cards
How It Works
Activate Mossborn Hydra using Fertilid's ability by paying and removing a +1/+1 counter from it, causing you to search your library for a basic land card and put it onto the battlefield tapped.
When the land enters the battlefield, Mossborn Hydra triggers, doubling the number of +1/+1 counters on it.
Activate Mossborn Hydra twice using Crystalline Crawler's first ability by removing two +1/+1 counters from it, adding .
Repeat until there are no basic lands in your library.