Frog Engine

The "Frog Engine" is one of the best deck engines for Tribute Summons, especially the Monarchs. It consists of Swap Frog, Dupe Frog, Treeborn Frog, and Ronintoadin. This deck engine used to be extremely powerful because of Substitoad but it is currently Forbidden. With the release of Extreme Victory though, a new Frog support card came out called Tradetoad.

How the engine works is by discarding a WATER monster to Special Summon Swap Frog. Then with Swap Frog's effect you can send a Level 2 or lower, Aqua type monster to the Graveyard (preferably Treeborn Frog or Ronintoadin). Then you can proceed to Tribute Swap Frog for a monster or another card effect.

You take advantage of this deck's almost endless supply of tributes by using cards such as Enemy Controller and Creature Swap to stop Synchro Summons or to take one of your opponents monsters and in return give them a monster with a glorious 100 ATK.

With the release of Formula Synchron, you can combine Fishborg Blaster with this engine to execute Synchro Summons for an effective +1 in Hand advantage. Remember though Fishborg cannot be sent to the Graveyard by Swap Frog's effect because it is a Fish type.

Recommended Cards
Monsters:
 * Swap Frog
 * Dupe Frog
 * Treeborn Frog
 * Ronintoadin
 * Tradetoad
 * Fishborg Blaster

Spells:
 * Enemy Controller
 * Creature Swap

Traps:
 * Tyrant's Temper

Weaknesses
Your weaknesses include cards that stop tributes such as Mask of Restrict. Different Dimension Decks and Bounce Decks can also stop you because of the engine's love of the Graveyard and your level 5 or higher are being sent back as soon as they are summoned.