Ok so I played the Trading Card Game for two years now and finally quit because the game was too unbalanced and only the most expensive cards win games (I kid you knot when I say that people pay a hundred dollars or more for one card). So it's been a year since and now my younger brother and even younger little sister watch the show. They are really addicted to the show and talk about it all the time, which begs the question if Yugioh is an appropriate show to watch? especially since there's many occult themes and summonings, sacrificing, etc.
Yes, Yugioh is evil and regrettably no the show is inappropriate at any age level. God said that it will land those in fire if they do not repent. It incites idolatry (because of the addiction and characters to be heroic), it causes contention, strife, debates, ungodly competition, wicked imaginations to sow destruction, witchcraft and evoking of demonic spirits. You'll have to research the history and origin of the characters in these games to find out they are indeed demonic. On a spiritual level, they will get more demons than they bargain for if overexposed for too long.
The devil tricks many into evoking or invoking the names of false gods or demons aloud who are without spiritual discernment or unaware of the realization unfortunately. People forget there are demonic spirits in this world and summoning them unknowingly through card games, video games, watching shows, movies, horror flicks etc. These evil spirits will attach and grow inside of a person causing strange behavior and also curse their lives in the future especially if they're unsaved. Then it will take a lot of deliverance prayers and repentance for said activities and it's not what God really wants for someone to go through to learn a lesson.
Here are some Bible verses and a question to consider, "Does the activity glorify God?"
King James Version:
1 Corinthians 10:31
31 Whether therefore ye eat, or drink, or whatsoever ye do, do all to the glory of God.
1 Corinthians 5:6
6 Your glorying is not good. Know ye not that a little leaven leaveneth the whole lump?
Psalms 101:3
3 I will set no wicked thing before mine eyes: I hate the work of them that turn aside; it shall not cleave to me.
Matthew 6:22-23
22 The light of the body is the eye: if therefore thine eye be single, thy whole body shall be full of light.
23 But if thine eye be evil, thy whole body shall be full of darkness. If therefore the light that is in thee be darkness, how great is that darkness!
Colossians 3:5-6
5 Mortify therefore your members which are upon the earth; fornication, uncleanness, inordinate affection, evil concupiscence, and covetousness, which is idolatry:
6 For which things' sake the wrath of God cometh on the children of disobedience:
1 Samuel 15:23
23 For rebellion is as the sin of witchcraft, and stubbornness is as iniquity and idolatry. Because thou hast rejected the word of the Lord, he hath also rejected thee from being king.
Exodus 23:13
13 And in all things that I have said unto you be circumspect: and make no mention of the name of other gods, neither let it be heard out of thy mouth.
Proverbs 6:16-19
16 These six things doth the Lord hate: yea, seven are an abomination unto him:
17 A proud look, a lying tongue, and hands that shed innocent blood,
18 An heart that deviseth wicked imaginations, feet that be swift in running to mischief,
19 A false witness that speaketh lies, and he that soweth discord among brethren.
2 Corinthians 12:20
20 For I fear, lest, when I come, I shall not find you such as I would, and that I shall be found unto you such as ye would not: lest there be debates, envyings, wraths, strifes, backbitings, whisperings, swellings, tumults:
Galatians 5:19-21
19 Now the works of the flesh are manifest, which are these; Adultery, fornication, uncleanness, lasciviousness,
20 Idolatry, witchcraft, hatred, variance, emulations, wrath, strife, seditions, heresies,
21 Envyings, murders, drunkenness, revellings, and such like: of the which I tell you before, as I have also told you in time past, that they which do such things shall not inherit the kingdom of God.
Shalom and be blessed,
Bro. Daniel