This card is used to Ritual Summon "Herald of Perfection". You must also Tribute monsters whose total level equals exactly 6 from the field or your hand. When "Herald of Perfection" is Summoned by the effect of this card, you can remove from play this card in your Graveyard to select 1 of the monsters used as a Tribute for the Ritual Summon, and add it from your Graveyard to your hand.
If he summon herald of perfection, and then he want to activate this spell card effect, can I chain bottomless to herald of perfection ? and make this spell card miss the timing ?