-Use SE on an opponent's monster
-Activate the second effect of e-con, taking control of your opponents second monster by tributing their first (which you just hit with SE).
-Perform a tribute summon using your opponents second monster.
You now have a 5* or higher monster on the field and in the process destroyed 2 of theirs.
no you cant,
1. I did SE 1 of my opponent monster
2. I activate my e-con (effect no 2)
3. I couldn't tribute my opponent monster which I already hit by SE. The game only have option to tribute my own monster instead of the SE'ed monster
You have done it the wrong way...you must first use your econ (effect2) then use SE because in SE text it has written that if you need to tribute a monster you MUST tribute that monster