Forum:Skill Drain vs Steelswarm Tribute

So guys, i had a discussion with some friend. I Tribute Summoned Girastag and chose Skill Drain 8already activated) to be destroyed, then i chained a Book of Moon to my Girastag, does the effect still applies? and with Compulsory or first step towards infestation? Last time i checked you could, but i heard ruling has changed a lot :/

Thanks!