For all who don't know, at YCS Jersey, they announced that Constellar Pollux and Evilswarm Castor's effects are continuous. This was later confirmed by Jerome Mchale.
Basically, how it works is their summons do not start a chain, if skill drain is activated before Pollux or Castor's summon, it does not negate the extra summon. But the next turn it does not get an extra normal summon. I hope this got rid of some confusion for you Constellar and Evilswarm users. I'll be doing more stuff on this.
http://www.konami.com/yugioh/articles/?p=4956 : Jerome's article.
Basically, how it works is their summons do not start a chain, if skill drain is activated before Pollux or Castor's summon, it does not negate the extra summon. But the next turn it does not get an extra normal summon. I hope this got rid of some confusion for you Constellar and Evilswarm users. I'll be doing more stuff on this.
http://www.konami.com/yugioh/articles/?p=4956 : Jerome's article.