Forum:Glad Beast Q's

Two glad beasts are tagging in and there is a stardust dragon on the field. The two glad beasts are Retiari (Chain Link 1) and Murmillo (chain link 2). Would my opponent be able to tribute stardust to negate murmillos effect? My thought is no because he cannot interrupt the chain, and thus he misses the timing.

Also, does the tag-in effect of Laquari boosting its attack cause a chain link (i.e. would I be able to make Laquari chain link 1 and Murmillo chain link 2 and still destroy Stardust Dragon successfully)?