Loop
From LOTR-TCG Wiki
(Redirected from loop)
Loop is an informal game term. It refers to at least two cards whose abilities enable each other, allowing for two or more actions to occur infinitely. A classic loop, from the Fruit Loops deck, is Steadfast Champion (7U49) and Treebeard, Keeper of the Watchwood (10R18) with Gandalf in play. You play Steadfast Champion (7U49) , discard it to heal Treebeard, exert him twice to play it again, going back to step one with a minion and shadow condition discarded.
This TLHH thread has a detailed explanation of the most popular loops in Open: https://lotrtcgwiki.com/forums/index.php?topic=237.0