The Clover Helmet can sometimes appear on Shen's Auction, and can be bid on by players. The top 10 bidders win the item when the auction ends.
Tips[]
Despite it reducing ♣ Pet Luck, the Clover Helmet is still overall a buff to pet drops assuming the player's ✯ Magic Find is higher than their ♣ Pet Luck (without the helmet).
There may be some cases where it is undesirable to use it due to loot tables rolling non-pet drops first, such as for Ender Dragons.
Trivia[]
The Clover Helmet is the only non-pet item that boosts stats by a percentage on its own.