Light Mausoleum
Finally we know why they all are Level 1 LIGHT Tuner.
During your Main Phase, you can Normal Summon 1 Level 1 LIGHT Tuner monster in addition to your Normal Summon/Set. (You can only gain this effect once per turn.) Once per turn: You can target 1 face-up monster you control; send 1 Normal Monster from your hand or Deck to the Graveyard, and if you do, it gains ATK and DEF equal to the sent monster's Level in the Graveyard x 100 until the end of this turn. You can banish this card from your Graveyard; add 1 "Burst Stream of Destruction" from your Deck to your hand.
Finally we know why they all are Level 1 LIGHT Tuner.