Bottomless Trap Hole & Jester Lord

Can you use BTH on Jester Lord when it's summoned? In this particular situation, JL is the only monster on the field and it would gain 8000 ATK due to it's effect.

Can I use BTH since its ATK is over 1500? Or can I not since the orginal ATK is 0...?

simply you cannot use bottomless trap hole because when it's summoned his attack is 0 than his effect kick in checking if he is the only monster on the field and than raises his attack by the number of Spell/Traps on the field x 1000

wrong train hardnett. VERY wrong.

If Jester Lord would be the only monster on the field, then by the time he is successfully summoned he will have >1500 ATK, which is the timing when BTH can be activated. You CAN use Bottomless Trap Hole on him in that scenario.

Remember that any changes in attack/defense are applied immediately when the monster is summoned.