Maybe I shouldn't even limp A10 from EP

[Komodo]

The biggest problem with this hand is that youre more or less playing in the dark on all streets. A reraise on the flop may not give you much info either, since there is a heart draw out there.
On the flop and turn its difficult to know whether Mp3 is weak or strong. On the river I think he is milking you, but you probably have to call.