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The Infinite Forbidden introduces a new theme that simulates this method of combat: First you place your tablet monster on the field as a Spell Card
As Pokemon card values enter uncharted territories, modern marvels like these may continue to go up without signs of stopping.
Yes, you cast cards and players have a chance to respond on the stack
Also popular are Gravekeepers Spy and Guard to imbalance the amount of monsters on the field (either by adding your board or removing from the opponents), Tsukuyomi to interfere with opponents monsters or gain extra value off the Gravekeepers, Mirage Dragon and/or Pitch Black Warwolf, and Injection Fairy Lily
So, at best, you may have two (rarely, though), but the opponent may or may not have any at all