Use in a "Lightsworn" Deck to mill cards to your Graveyard.
This card is great when combined with "Big Eye". A monster of your choice can be Summoned from the cards picked up by "Big Eye" and prevent any Spell or Trap Cards from going to the Graveyard.
Likewise, if an Spells and Traps are needed to be sent to the Graveyard, "Big Eye" can help in this respect as well.
This card can be used in a "Hieratic" Deck, Tributing a "Hieratic" monster, 2 monsters can quickly be Summoned, one by the effect of "Monster Gate" and another monster by the effect of "Hieratic" Tributed monster.