Controlled Burn is a Dota 2 item of Immortal rarity. Current price — $0.55. On DotaLoot it drops from 6 cases — open them and get Controlled Burn cheaper than on the market.
You can get Controlled Burn for free in or with levels. The fastest way is opening — noticeably cheaper than buying it on the market.
The current price of Controlled Burn is $0.55. It is updated based on the Steam market.