It was rare that a deck built around ritual summoning would successfully reach the upper echelons of the competitive game, but this deck did so by draining your opponent of resources during a mammoth opening gamut that, without the right hand traps to counter your opponent at the right time, could (very) slowly deck your opponent out before they had a chance to play
However, the card is still a massive powerhouse for Trap decks, which focus on interacting and Special Summoning on your opponents turn
Exile this creature at the beginning of the next end step, then you may cast it from exile on a later turn.) At the beginning of your end step, draw a card if you've gained 3 or more life this turn
Its Level is 9, which is relatively high, but it can bounce an opponent's monster and itself back to its owner's hands, thus fulfilling this card's condition right away
The ludicrous excess of a seven-mana ramp spell practically screams Commander, and given how easily you can go infinite by using that mana to flicker, reanimate or recast Beledros, I expect this to quickly join the staples of that format