http://www.db.yugioh-card.com/yugiohdb/faq_search.action?ope=4&cid=8272
http://www.db.yugioh-card.com/yugiohdb/faq_search.action?ope=4&cid=8624
http://www.db.yugioh-card.com/yugiohdb/faq_search.action?ope=4&cid=6092
EFFECT_TYPE_SINGLE + EVENT_TO_GRAVE/EVENT_SPSUMMON_SUCCESS/EVENT_TO_HAND
these effects can be activated in damage step by default