How about having spell events trigger when a series of spells are cast. For example, a team of three wizards might build a spell together by casting a Meteor Strike, then Earthquake, followed byTempest which causes a new spell called Armageddeon to happen.
This will add a new component to team play and deck construction.
the triton fire dragon and fire dragon are not the titans to be correct the STORM LORD FIRE DRAGON & FROST GIANT are the titans if that sound mean i sry