Advanced format ruling
Mausoleum of the Emperor
Card effect (current official text)During any Main Phase: The turn player can pay 1000 LP x the number of monsters normally needed for the Tribute Summon of a monster (max. 2000); that player Normal Summons/Sets that monster without Tributing. (This is their one Normal Summon/Set for that turn. This is not a Tribute Summon.)
Current rulings for this card are maintained by Konami.
Rulings data courtesy of Format Library — formatlibrary.com. Spotted an inaccuracy? Flag it in the Advanced forum — sourced change requests get reviewed.