You can substitute this card for any 1 Fusion Material Monster, but the other Fusion Material Monster(s) must be correct. You can Tribute Fusion Material Monsters on the field, including this face-up card; Special Summon 1 corresponding EARTH Fusion Monster from your Extra Deck.
Second effect allows it to special summon earth fusion monster, only if you have the other required material monster.
Needs to be face up when activated, which will give your opponent a chance to destroy it before you can activate it.
Second effect is for EARTH fusion monster only, and there aren't that many available yet.
The strongest EARTH fusion monster that you can summon now is Master of Oz. Summon/set Des Kangaroo and summon Hex next turn to special summon Oz without needing to bring Big Koala.
Hex can also be used to special summon Ryu Senshi since it's not considered fusion summon. If you have Warrior Dai Grepher, summon Hex and activate the ability to get Ryu Senshi out. This isn't doable with Polymerization though.
Tributes for cost / Tributes itself for cost
Fusion Substitute Monster / Special Summons from your Extra Deck
We have Electromagnets.
We have Six Samurais.
We have Blue-eyes
We have Red-eyes
We have Neos Fusion
We have Koa'ki Meiru
We have Survival's End
We have TRIAMIDS (F2P and can climb in DAY 1)
We have Dark Magician
We have Mermails
We have Crystrons
We have Ancient Gears
We have Cyber Dragon Beatdown + King of the Swamp
We have Gem Knights
But ok, let me repeat it once again.
*Inbreeding is dangerous for society, because people who are inbred cannot formulate a rational opinion nor a valid argument. They just pretend to go away with whatever random idea they have. Very poor perception of reality.
i think this card is bugged.
so, i want to use this card to summon cyber blader.
my hand have polymerization, etoile cyber, and earth hex seal. field empty. opponent field empty. but i cant use polymerization.
but after i summon both etoile cyber and hex seal onto the field i can tribute them to summon cyber blader. this is really wierd. can someone test out pls. in other yugioh games this works fine.
oorrrrr..... im missing something?
Elemental HERO fusions state that they can only be fusion summoned. This card's effect is a special summon and therefore cannot be used.
Why couldn't i use this card as a substitute for ancient gear golem in order to summon ultimate ancient gear golem? i had this card on the field + 2 ancient gear monsters, and i couldn't activate the effect.
You can only use a Fusion Substitute over a named material. It's not easy to prove in this particular case since you can only use 1 Sub and it substitutes over the Ancient Gear Golem (and AGG can be one of the "Ancient Gear" materials), but you can't use it as one for a monster like Pair Cycroid.
Who thinks mekk knights are good and world chalice decks
You can use it as a regular fusion substitute for any Attribute of Fusion, just like Versago the Destroyer or King of the Swamp. You probably just tried it with a Fusion that isn't able to use them, like Superalloy Beast Raptinus or UFOroid Fighter.
Gem knights are good cause burn baby burn with that lapis card I think it's is name but personally I don't play gems since seraphanite normal summon 2x using brilliant fuse and sending lazuli to grave from deck good in chalice deck especially
Trying to use this with a gem-knight deck - it seems like it's unable to fuse for citrine and ruby. might need more testing but i'd have poly + garnet + hex, and couldn't summon either, anyone know what's up with that?