Relic Event for Shadow

Hello guys I need help and advice about how to create a new event for shadow's new relics and new rival and I don't know how. I know zeemis he made a patch to change lore to summon from Strago and how did he do the "Summon" command permanent. If your ask me what relics for Shadow and what event are set for new relic item, his Throw ability change into a Summon ability and the event ala Sabin and Duncan.But as i said I can't decide what place are best suit for shadow's new event and also I'm looking for his rival(Obviously a fellow Ninja).I know its not easy on how to create a event and other stuffs so I hope anyone of you will help my problem....BTW I'm newbie matee.