Gorg, Caustic Sharpshooter

Partner with Iguana, Loyal Steed (When this creature enters the battlefield, target player may put Iguana into their hand from their library, then shuffle.)
Reach
Paralytic Coating—{t}Put a quest counter on target creature. Whenever that creature deals combat damage to another creature, remove {x} quest counters from it and put {x}stun counters on the creature who received damage, where {x}is the number of quest counters on attacking creature.