It can accept negative value by default.

fix Ring of Magnetism

fix Deep-Eyes White Dragon

Now the players cannot enter ep if they have a attackable monster with EFFECT_MUST_ATTACK by default.

This reverts commit f260e9cf, reversing
changes made to 48f4ac43.

Update utility.lua

update_cannot_be_chained_2

fix Night Beam, Nordic Relic Laevateinn

fix and update Destiny Board

fix Cursed Bill

update Ferret Flames

fix Performapal Pinch Helper

fix Conscription

Update c4130270.lua

fix 半魔導帯域

fix 天帝アイテール

Update constant.lua

http://www.db.yugioh-card.com/yugiohdb/faq_search.action?ope=5&fid=17422&keyword=&tag=-1

Duel.Win()
Winning effects should have highedst priority.

fix Union Monster, Armory Arm and Burner Visor

fix Cattle Call