How powerful would these custom MTG cards be in Modern and Commander?

[SeekerOfTruth007]

Healing Hands 1W

Enchantment - Rare

Cumulative Upkeep: Gain 1 Life.

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Concentration 1U

Enchantment - Rare

When a spell or ability you control is Countered by a spell or ability an opponent controls, you may pay 1 to draw a card.

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Atomic Force Barrier RU

Enchantment - Rare

When a creature deals damage to you, Atomic Force Barrier deals 2 damage to that Creature.

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Kefka Poisons Doma BG

Sorcery - Rare

Target player discards two cards at random. For each land card discarded this way, that player gains a Poison Counter.

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Guardian Angel 4WWW

Creature - Angel - Rare

Flying.

WW: Target creature is Invincible until end of turn. (It can't be affected by anything your opponents control.)

5/5

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Elemental Aegis 3

Artifact Equipment - Rare

Equip: 3.

Protection from Everything.

Equipped Creature gains Protection from Everything. This doesn't remove Elemental Aegis.

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Cephalid Foresight U

Instant - Mythic

Flashback: Sacrifice a Creature.

Name a card, then reveal the top card of your Library. If it is the named card, put it into your hand. Otherwise put it back on top of your Library.

Draw a card.

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Paragon of Ages 1W

Creature - Knight - Rare

First Strike.

1W: Mislead. (Exile Paragon of Ages, then return it to the Battlefield.)

2/1

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Overthrow 1GG

Sorcery - Rare

You may Discard a Forest card and another card instead of paying Overthrow's mana cost.

Creatures you control gain +2/+2, Hexproof, and Trample until end of turn.

[AI Opinion]

These cards feel like fan-made bosses you’d love in casual, but they’d break real formats fast 😅

In Modern, Guardian Angel with “invincible” and Elemental Aegis with “protection from everything” are way too strong and confusing, basically locking some decks out. Overthrow is super pushed as a free pump spell.

Commander players might enjoy Kefka and Atomic Force Barrier for politics, but most of these would need nerfs or clearer wording to be fair and fun.

[SeekerOfTruth007]

These cards are not even as powerful as cards already in print. There are real cards with "Protection from Everything".