Leprechaun Line

Shamrock Express is the only place the Leprechaun Line shows up, and it is not limited, so you can pick it up there whenever you reach it. The headline is Luck: 350, tied for 4th of 184 obtainable rods. That is rare-fish territory for a rod with no passive and no price listed in the wiki.

Almost everything else is weak. Lure Speed of 55 is 122nd of 184, Control of 0 is 141st of 185, and Resilience of 14 is 125th of 184. In practice you wait longer for bites, and the reel bar will not help you. What it does offer is a weight cap of 14,000 kg, 58th of 117 rods that list one, which is enough for plenty of large catches.

So the trade-off is clear: you get top-tier luck and pay for it with slow, unsteady fishing. That suits players who are patient and who already handle the minigame well, because every landed fish has a better chance of being rare.

Verdict: a good rod for luck-focused fishing sessions, especially when you want rare drops and do not mind low speed. If you farm for volume, a faster rod will give more fish per hour. If you hunt rarity, 350 Luck is hard to ignore.