Infinite +1/+1 counters on creatures you controlInfinite colored manaWin the game at the beginning of your next upkeep
How it works
Activate Simic Ascendancy by paying 1, putting four +1/+1 counters on Crystalline Crawler.
Simic Ascendancy triggers, putting growth counters on it.
Activate Crystalline Crawler's second ability by removing three +1/+1 counters from it, adding 1.
Repeat.
At the beginning of your next upkeep, Simic Ascendancy triggers, causing you to win the game.
This clever loop lets you pump endless counters into Crystalline Crawler and cruise to a win with Simic Ascendancy. While Simic Ascendancy handles the mana payment and the alternate win condition, Doc Samson, Super Psychiatrist and a fully leveled Innkeeper's Talent provide massive replacement effects that multiply every counter you place. Because those doublers and adders turn a single activation into an avalanche of growth counters, you can easily strip counters away for mana with Crystalline Crawler's ability, fund the next activation, and stack up the twenty growth counters needed for Simic Ascendancy's upkeep trigger in no time flat.