Qns regarding general rule

as the title states...am wanting to clear my doubt regarding this...

Qn 1) is guarding of REAR GUARDS possible or not (what i mean is can u use a card from HAND the SAME grade as your rear guard and guard it or not)??? or must it a GRADE below befor u can guard??

Qn 2) can u use a Card from your hand that has the same grade as your VANGUARD and guard your Vanguard or not?? or must it be compulsory to guard with a card on your hand with a lower grade than your Vanguard?? (not counting intercepts which i alrdy know is possible)

Qn 3) is it possible to intercept for example **if Gallatin( Grade 2 ) is in your REAR GUARD can u use it to INTERCEPT another Rear Guard for example Gancelot which is another REAR GUARD?? or is INTERCEPT strictly only to intercept the Vanguard??

plsssssssssssssss ans my Qn asap cos its URGENT!!!!!!thks

Q1

Yes it is possible. The grade must be equal than ur vanguard.

Q2

Yes. But do realise Grade 0 has 0 Shield Value.

Q3

Yes it is possible to intercept a rearguard.

then another Qn:

can i do a drive check if my Vanguard attacks a rear guard??

ya

can i know if the deck no more cards isit straight lose the game?

like example i use banshee to draw during my turn and my deck no more cards or twin drive will i lose the game straight or need waiting until my draw then lose?