yugioh cards that let you special summon Limit - RA01-EN070 Super Rare Special Summon | Yu-Gi-Oh! Wiki

Since it is too slow to waste a Gold Sarcophagus on, this is best exploited with or against a Macro Deck

Some examples of this are: Event Promotional Cards Cards distributed at tournaments, conventions, store events, and special celebrations are typically produced in limited quantities and not reprinted, making them increasingly scarce over time

An alternate way of using Tri-Horned Dragon would be in a self-mill deck, where a revival card like Monster Reborn could potentially resurrect the Tri-Horned Dragon for free without sacrificing other Monsters that could possibly be used as cannon fodder

Youre still likely climbing uphill here, but theres something poetic about giving them exactly what they want over and over and then punishing them for their greed

You can only Special Summon "Beetrooper Assault Roller" once per turn this way