Era Shifter archtype, xyzs that relate to synchros

[I Hate Snatch Steal]

 

2 level 4 monsters
This card is always also treated as Machine-Type. When this card is xyz summoned: target 1 level 6 or lower synchro monster in your graveyard; equip it to this card. While equipped this way, this card's name, becomes the equipped monster's name and this card gains ATK equal to half the ATK of the equipped monster. Also once per turn you can activate the effect of the equipped monster as this card's effect. If this face-up card would be destroyed, you can detach 1 Xyz Material from this card instead.

 

 

2 level 4 monsters
This card is always also treated as Machine-Type. When this card is xyz summoned: target 1 level 6 or lower synchro monster in your graveyard; equip it to this card. While equipped this way, this card's name, becomes the equipped monster's name and this card gains ATK equal to half the ATK of the equipped monster. Also once per turn you can activate the effect of the equipped monster as this card's effect.  If this card destroys an opponent's card (either by battle or by its effect): you can detach 1 xyz material from this card; draw 1 card.

 

 

2 level 6 monsters
This card is always also treated as Machine-Type. When this card is xyz summoned: target 1 synchro monster in your graveyard; equip it to this card. While equipped this way, this card's name, becomes the equipped monster's name and this card gains ATK equal to half the ATK of the equipped monster. Also once per turn you can activate the effect of the equipped monster as this card's effect.  When this card destroys an opponent's card (either by battle or by its effect): you can detach 1 xyz material from this card to target 1 card your opponent controls; destroy that target and if you do, inflict 800 damage to your opponent.