These can be done in Commander quite well given the slower nature of the format, but Goro-Goro has all the hallmarks of a Standard powerhouse
rather, it keeps its lair full of servants and dispensable thralls
The former were concerned about losing the value of their existing investments, while the possibility of cheap future reprints discouraged the latter from purchasing limited edition products

The breakdown for each booster pack is as follows: 2 Non-foil showcase Scrolls of Middle-earth commons 2 Silver foil show Scrolls of Middle-earth commons 2 Non-foil showcase Scrolls of Middle-earth uncommons 2 Silver foil showcase Scrolls of Middle-earth uncommons 1 Non-foil showcase Scrolls of Middle-earth rare or mythic rare 1 Silver foil showcase Scrolls of Middle-earth rare or mythic rare 1 Surge foil full-art Middle-earth map land 1 Non-foil borderless Scene Box rare or mythic rare, or 1 extended-art rare Jumpstart card 1 Surge foil extended-art rare or mythic rare 1 Surge foil Booster Fun card, or a surge foil or serialized Realms and Relics card 1 Silver foil or non-foil Brothers Hildebrandt card, 1 traditional foil or non-foil borderless poster card, or 1 serialized borderless poster card 1 Double-faced surge foil token Do LotR Special Edition Collector Boosters Contain New Cards or Reprints

Any sustainable loop will be good enough, since even the smallest repeatable effect like Pyrite Spellbomb you can find on your board should be lethal