on rightclick holding a diamond:
    name of held item is "兵科切り替え結晶"
    open chest with 1 row named "<blue>mob能力切り替え装置" to player
    wait 1 tick
    format slot 0 of player with stone named "<green>クリーパー" with lore "&dクリーパーの能力" to close then run "creeper %player%"
    format slot 2 of player with stone named "<red>ゾンビ" with lore "&dゾンビの能力" to close then run "zombie %player%"
    format slot 4 of player with stone named "&dエンダーマン" with lore "&dエンダーマンの能力" to close then run "enderman %player%"