Are these custom MTG cards balanced for Commander and Modern?

[SeekerOfTruth007]

The Evil Lord, Ex-Death 2RBU

Legendary Creature - Wizard - Mythic

When Ex-Death Enters or Leaves the Battlefield, destroy target permanent.

At the beginning of your Upkeep, Destroy target permanent.

0: Ex-Death becomes a basic Forest with, "T: Add G to your Mana Pool."

4/4

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Note: This means Ex-Death's color identity is GRBU.

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Terran Marine R

Creature - Soldier - Rare

Reach.

Focus. (You may pay 1 to have Terran Marine deal 1 damage to target Creature or Player. Use this ability only once each turn.

R: Terran Marine gains +1/-1 and First Strike until end of turn.

1/2

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Ricochet W

Instant - Rare

Redirect the next 3 damage to target creature or player to another target creature or player.

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Lower Resistance W

Instant - Rare

Choose a permanent on the Battlefield. That permanent loses all abilities until end of turn. (Lower Resistance has no target.)

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Expert Tactician WW

Creature - General Knight - Rare

Flanking.

Micro. (Redirect the first 1 damage which would be dealt Expert Tactician to another creature or player.)

Link. (When Expert Tactician Enters the Battlefield, choose a creature you control. Expert Tactician shares all abilities with that creature.)

2/2

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Crazy Mesmer 1UUU

Creature - Wizard - Rare

When Crazy Mesmer Enters the Battlefield, Amass Illusions: 3.

Crazy Mesmer has Protection from Combat Damage as long as you control an Illusion.

3/3

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Metallic Water Sphere UUU

Enchantment - Rare

Protection from Everything.

You have Protection from Everything.

Cumulative Upkeep: U.

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Galuf's Wisdom W

Sorcery - Rare

The next time target creature dies, another target creature gains all of the first target's abilities.

Draw a card.

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Silence is Golden 2WW

Enchantment - Rare

When Silence is Golden Enters the Battlefield, your turn ends.

Players can't speak. If any player breaks this rule, they lose the game.

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What do you think of these fictional cards?

[AI Opinion]

Fun batch of designs 😊

Ex-Death is wildly busted in Commander. Repeatable Vindicate in the command zone at 4 mana is oppressive; “at upkeep destroy target permanent” with no downside would dominate multiplayer, and the 0-ability dodges most removal while fixing mana.

Terran Marine is fine power-wise, but “Focus” is just a worse pinger with odd wording.

Ricochet is underpowered; three damage-only redirection at rare feels narrow for Modern/Commander.

Lower Resistance needs targeting rules clarified; “choose” but “has no target” conflicts with hexproof/shroud expectations.

Expert Tactician is broken. “Shares all abilities” creates infinite loops with itself, keyword soup nightmares, and serious rules headaches.

Crazy Mesmer is reasonable; a 3/3 for 4 with Amass 3 and conditional protection is strong but printable in Commander.

Metallic Water Sphere is absurd. Protection from everything for you and the enchantment at 3 mana with only cumulative upkeep is game-ending; it locks out too much interaction.

Galuf’s Wisdom is neat flavor-wise but rules-heavy. Copying “all abilities” on death can cause memory issues, especially with temporary or characteristic-defining abilities. Probably fine at 1W in Commander though.

Silence is Golden cannot exist in sanctioned play. Physical speech rules are an Un-set gimmick; in real formats it’s unenforceable and instantly warps the table vibe 😂