trigger:

    if player is op:

        spawn iron golem at player with nbt nbt compound from "{CustomName:'{""text"":""Main-Core""}', NoAI:1b, Team:%team of player%, ActiveEffects:[{Id:11,Amplifier:2,Duration:20000000,ShowParticles:0b},{Id:10,Amplifier:0,Duration:20000000,ShowParticles:0b}]}"

        set {_spawn} to the last spawned entity

        set {_spawn}'s max health to {main-Core-Max-Health} # 최대체력 (칸)

        set {_spawn}'s health to {main-Core-Max-Health} # 현재체력 (칸)

        loop all entities within 10 blocks of {_spawn}:

            if entity is a player:

                if entity is on {_spawn}'s team:

                    execute as entity

                        title @s actionbar {"text":"\u00A7c팀의 철골렘이 데미지 입었습니다~!","color":"dark_red"}

                        title @s title {"text":"\u00A7c팀의 철골렘이 데미지 입었습니다~!","color":"dark_red"}

                    execute as the entity end

            else if entity is a living entity:

                if entity is on {_spawn}'s team:

                    set entity's custom name to "TEAM A Main-Core"

                    set entity's glowing to true

                    set entity's noAI to true

                    set entity's team to {_spawn}'s team

                    set entity's max health to {main-Core-Max-Health} # 최대체력 (칸)

                    set entity's health to {main-Core-Max-Health} # 현재체력 (칸)

제 방식대로 코드 추가 해봤는데요 이런걸 원하시는걸까요?