You can Tribute Summon this card by Tributing 1 Tribute Summoned monster. If this card is Tribute Summoned: You can send 2 "Monarch" Spell/Trap Cards with different names from your hand and/or Deck to the Graveyard, and if you do, shuffle 1 card from your opponent's hand (at random), Graveyard, or their side of the field into the Deck. Once per turn, during either player's Main Phase, if this card is in your Graveyard: You can discard 1 "Monarch" Spell/Trap Card, then target 1 monster in your Graveyard with 2400 or more ATK and 1000 DEF; add it to your hand.
Monarch Spell/Trap cards with graveyard effects are good for Erebus’ costs. However other Monarch Spell/Trap are sometimes needed to fuel these effects. The Prime Monarch lets you return these Spell/Trap cards to your deck and gives you a draw.
Sends from your hand to your Graveyard for cost / Sends from your Deck to your Graveyard for cost / Returns from your opponent's hand to your opponent's Deck / Returns from your opponent's field to your opponent's Deck / Returns from your opponent's Graveyard to your opponent's Deck / Discards for cost / Adds from Graveyard to hand / Activates from your Graveyard
Normal Summon with 1 Tribute
We miss his light brother, Ether and his squire edea