It is recommended for all people who only just started to play duel links but at least one structure deck. But aside from that, people who want to build E-Hero themed decks are recommended to buy this Box.
If this card is Normal or Special Summoned: You can add 1 "Polymerization" from your Deck to your hand. During your Main Phase: You can activate this effect; you cannot Special Summon monsters for the rest of this turn, except Fusion Monsters, also send 1 "Elemental HERO" monster from your Deck to the Graveyard, except "Elemental HERO Blazeman", and if you do, this card's Attribute, ATK, and DEF each become the same as the monster sent to the Graveyard, until the end of this turn. You can only use 1 "Elemental HERO Blazeman" effect per turn, and only once that turn.
When this card is destroyed by battle and sent to the Graveyard: You can banish this card and 3 "Elemental HERO" Monster Cards with different names from your Graveyard to target 1 Normal Spell Card in your Graveyard; add that target to your hand.
"Elemental HERO Heat" + "Elemental HERO Lady Heat" Must be Fusion Summoned and cannot be Special Summoned by other ways. If this card battles a WATER monster, this card gains 1000 ATK during the Damage Step only.
When an opponent's monster declares an attack: Your opponent chooses 1 random card from your hand, then if it is a monster that can be Special Summoned, Special Summon it. Otherwise, send it to the Graveyard.
The deck building is beyond terrible. However playing 2 Blazeman and the fusion fire HERO's is really nice if used correctly. I jammed Thunder Dragons since I can't see a reason why not to have them on a deck that uses 3 Poly. Also, add the usual brainless Super Rush and Money-Wall combo to get a deck that can consistently win on turn 4. You may still lose to somemoney-decks or Toon Boredom tough.
Elemental HERO Blazeman x 3
Elemental HERO Neos x 2
Elemental HERO Burstinatrix x 2
Elemental HERO Avian x 2
Elemental HERO Heat x 3
Elemental HERO Lady Heat x 1
Elemtal hero Bubbleman x 1
Polimarization x 2
H-Heated Heart x 2
The Warrior Returning Alive x 1
Hero Barrier x 2
Elemental HERO Flame Wingman x 2
Elemental HERO Mariner x 1
Elemental HERO Inferno x 2
there are many E-hero monsters not yet exist in duel link. The latest "Hero" fusion monsters are very easy to summon with good effect.
eg: 1 "HERO" monster + 1 (attribute) monster.
therefore, what you need is 1 Hero + any monster to fusion summon.