Hex sealed fusion/ Fusion material monsters

Let's say if I have Hex sealed fusion on my side of the field, can I:

1) declare it as cyber dragon and fusion for Fortress dragon ( without using the release itself effect, but SUB as cyber D.)

2) declare it as cyber dragon and USE its release effect for the SPECIAL summon of over dragon with my other machine monsters on MY side of the field.

3) declare it as GB monster (if I have bestari on my side or any GB ), and fusion it for GYZARUS.

4) declare it as any machine sub and release it with my Cyber D on my side of the field for Special summon (not FUSION) of overload dragon.

5) declare it as XYZ or VW and Special summon VWXYZ with either XYZ or VW.

If you are trying to substitute the materials...

Quote :

When Special Summoning "Chimeratech Fortress Dragon"/"XYZ-Dragon Cannon"/etc, you cannot use "Goddess with the Third Eye" etc as a Fusion Substitute Monster.

This should apply to your Gyzarus question as well.

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If you are trying to summon by using the release effect...

Gyzarus effect reads:
This card can only be Special Summoned from your Extra Deck by returning the above cards you control to the Deck. (You do not use "Polymerization".)

Chimeratech Overdragon effect reads:
This monster cannot be Special Summoned except by Fusion Summon.

bahamut84 wrote:

Chimeratech Overdragon effect reads:
This monster cannot be Special Summoned except by Fusion Summon.

If fusion sub are in the graveyard and overload fusion , dragon's mirror or miracle fusion is used instead, can FGD, Chimera tech Over dragon and subbing of E hero material be fusion ?

Is Master Dragon Knight with Black luster and fusion sub as ultimate dragon using Dragon's Mirror allowed?

Less those Dragon Majin, Labywrinth Tank and those with stated one + one monsters while the other monster is not a fusion or synchro monster.

You can only substitute the "named card".