“Magic Jammer” may only be activated in a chain to the initial activation of “Wave Motion Cannon.” “Magic Jammer” may not be activated in a response to the action of Tributing “Wave Motion Cannon.”
“Magic Jammer” must be activated in a chain with the activation of “Double Spell.” If “Double Spell” has successfully resolved, “Magic Jammer” may not be used to negate the activation of the Spell activated through the effect of “Double Spell.”