Attentive Sunscribe + Arwen Undómiel + Crystalline Crawler + Freed from the Real + Winding Constrictor

Attentive Sunscribe

Arwen Undómiel

Crystalline Crawler

Freed from the Real

Winding Constrictor

How it works

1. Activate Freed from the Real's first ability by paying , tapping Attentive Sunscribe.
2. Attentive Sunscribe triggers, causing you to scry 1.
3. Arwen Undómiel triggers, putting two +1/+1 counters on Crystalline Crawler.
4. Activate Crystalline Crawler's first ability twice by removing two +1/+1 counters from it, adding .
5. Activate Freed from the Real's second ability by paying , untapping Attentive Sunscribe.
6. Repeat.

This elegant loop is powered by Attentive Sunscribe enchanted with Freed from the Real, allowing you to repeatedly tap and untap the creature to generate infinite scry triggers. Each time you scry, Arwen Undómiel triggers to place a +1/+1 counter onto Crystalline Crawler, whose ability lets you convert those counters back into mana to keep paying the untap cost. Meanwhile, Winding Constrictor acts as a vital amplifier, ensuring that every time counters are placed on Crystalline Crawler, you get an extra one to fuel even more mana production than you spend.