"Ehther the Heavenly Monarch" Rating Score by 50304

His Monarch King of Light paired with the Dark Monarch. Nice...
The effect of ① is to recruit Monarch status + α while sending his Monarch King Spell Trap to his GY. How proud. Many Monarchs that have been Special Summoned cannot activate their effects, but with the bonus of being returned to your hand. It seems like a disadvantage, but it's not a bad thing considering that you can use the powerful Monarch effect.
Recruiting Kreis from the start makes it easy to disrupt and draw opponents.
This alone is excellent, but the surprising effect is ②. Surprise ability as if interfering with the rule of Tribute Summon on the opponent's turn. Moreover, there is no limit such as turn 1. It works well with King of Monarch Spell Trap, and if Kaiiwa is used on the opponent's turn, it will be an eye tail search for the second and subsequent cards, and if you use Retsusen, it will be a super powerful removal. In particular, if the Tribute Summoned monster is on your side of the field, during your opponent's turn, it will have an Atail effect, chain it into a rage, and if you chain Shingen from GY, it will become a surprise attack (Release exists on the field to activate Aitail's effect. It's necessary, but it's actually released when the effect resolves. Sorry if I'm wrong.)
It's a powerful effect anyway, and it's not hard to imagine it becoming the new ace of the Monarch Deck.