Forum:Tytannial's effect

hi ive got a question, i have a tytannial and dandylion on my field and my opponenent has 2 "compulsory evacuation device" set, he uses 1 on my tytannial, i negate it with tytannials effect by tributing dandylion and then he chains his 2nd "compulsory evacuation device" on tytannial again, can i use tytannial's effect again to negate it by tributing itself?. In other words can i use tytannial's effect twice in the same chain. thanks Champklee 12:22, November 25, 2009 (UTC)