This card can also be Special Summoned by Summoning "Quickdraw Synchron" by its effect while "Level Eater" in the Graveyard and there is another monster of Level 5 or higher on the field. Shave a Level off the monster for "Level Eater", then Tune the bug with "Quickdraw" for this card.
This can be done rapidly by discarding "Level Eater" for the effect of "Quickdraw".
Revive "Doppel Warrior" and Special Summon "Boost Warrior", or revive "Boost Warrior" and Special Summon "Doppel Warrior", for the same net effect.
Synchro Summon this card by Normal Summoning "Marauding Captain" and using its effect to Special Summon "Junk Synchron", or by Special Summoning "Junk Forward" and Normal Summoning "Junk Synchron".
"Weapon Change" is an ideal card to use as it increases the ATK of "Junk Gardna" to 2600.
If "Weapon Change" gets destroyed during a battle that "Junk Gardna" can't win without it, use its effect to stop the battle or wall the attack.
In a "Synchron" Deck, combine this card's effect with the effect of "Nitro Warrior" to attack an extra monster each turn.
In a "Synchron" Deck, this card can also be combined with the effect of "Drill Synchron to draw a card.
This card is especially effective against a "Cloudian" Deck, where many of the monsters will be destroyed if changed to Defense Position.
This card is also useful against monsters with 0 DEF and monsters that must be Flip Summoned to activate their effects.
Combine "Junk Gardna" and "Junk Berserker" effects to destroy the opponent's Defense Position monsters, or change their Defense Position monsters to Attack Position and use the effect of "Junk Berserker" to deal a great amount of damage
This card is perfect for stalling opponents, making it difficult for even monsters with enough ATK to attack it (unless there are 2 or more).
Junk Synchron and Junk Gardna can synchro for Gottoms. Junk Gardna is also useful for Fulhelmknight's effect. Also, Palamuro.
Equip "Junk Gardna" with "Magnum Shield" to turn it into a 4000 point attacker/defender plus its ability, making it very unlikely that your opponent will be able to launch any attacks. If they do try going after your weaker monsters, use cards "Shift", "Call of the Earthbound", and "Patrician of Darkness" to redirect their attacks to "Junk Gardna", taking a lot of damage in the process, possibly destroying them if "Junk Gardna" is in Attack Position. "Battle Mania" is also a good idea if "Junk Gardna" is the only monster on you field.