Are there any other spells in bant colors that will cause Enduring Scalelord to go infinite?
Yes. Cackling Counterpart and Battlegrowth are in Bant colors and combo with Enduring Scalelord. 

Can you teach me how to search for cards myself? 

Introducing the Gatherer's advanced search feature. We know that Enduring Scalelord goes infinite with itself. Let's try to find a clone in Bant colors. Here is what I started with:


Color:

Does NOT contain Black
Does NOT contain Red

Rules Text:

Does contain "copy"
Does contain "target creature"



Tons of results. Let's try narrowing it down. Instants are nice if they are cheap, so let's see if we can find one.


Card Type: 

Does contain Instant"



Still a lot of false positives. I notice a lot of "copy target spell" cards. We don't want those.


Rules Text:

Does not contain "spell"



Here is the final result. The top four cards are all three mana instant speed spells that can copy your Enduring Scalelord. Nice.

I repeated this process to find Battlegrowth, but I'll leave the exact search as an exercise for you. Learning how to mine the Gatherer is far more valuable being handed a list of cards.