Forum:Few Questions about Future Fusion

K i just have a few questions about future fusion.

First is it a effect or a cost when you are sending the fusion monsters to the graveyard.

Second if my oppenent has a trap card that can negate future fusion at which point is it too late for them to do it. I mean that must they activate it in responce or can they wait till they see what fusion monster is gonna be summoned or wait even later till they've actually seen what was sent to the graveyard. Steelfallenangel 15:33, 12 June 2009 (UTC)