If opponent using no. 16 shock master effect and call for monster.
Question 1: can I summon beast king barbaros from hand with his eff that without tribute?
Question 2: question 1 is yes, the barbaros attack is at?
Question 3: if no 16 and barbaros with 1900 on field, no 16 use eff call for monster, the barbaros att become 3k?