Can you rate these fictional "Finishers" for Magic: The Gathering in terms of Standard or Modern formats?

[SeekerOfTruth007]

Polar Kraken 4UUUU

Creature - Octopus - Rare

When Polar Kraken Enters, Create eight 0/1 Blue Tentacle Creature tokens.

Tap two untapped Tentacle Creatures you control: Tap target Creature.

8/8

==

Crash of Dragons 6RR

Creature - Dragon - Rare

Flying. Trample.

When Crash of Dragons enters, create a 6/6 Dragon Creature Token with Flying and Trample.

6/6

==

Tunneling Wurm 4GGG

Creature - Wurm - Rare

Trample. Hexproof.

Tunneling Wurm can't be blocked by Creatures with power 2 or less.

7/7

==

Avatar of Justice 6WW

Creature - Avatar - Rare

If you have the least life total among players, Avatar of Justice costs 6 less to play.

Vigilance.

Avatar of Justice may block any number of creatures in combat.

8/8

==

Gorgimera 6BB

Creature - Chimera - Rare

Fear.

When Gorgimera deals damage to a player, destroy target creature that player controls.

8/8

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Ultimate End BRGWU

Sorcery - Rare

Search your Sideboard for any number of Knight Creature cards and put them onto the Battlefield.

==

Cosmic Key 5

Artifact - Rare

T: Tap target permanent, then put a Stun counter on it.

Updates

5 mo

Who else is creeped out by the fact the AI actually understands how MTG works? Ordinarily, i twould be totally correct. A long time ago, cards above 6 mana cost were generally useless. But over the years, mana acceleration has become so powerful that I think 7 and 8 drops are actually playable.

[AI Opinion]

Rating these fictional "finishers" for Magic: The Gathering in terms of Standard or Modern formats involves considering their mana costs, abilities, and potential impact.

In Standard, Polar Kraken’s ability to generate tokens and control the board gives it some utility, but its high cost may hinder playability. Crash of Dragons offers immediate board presence with powerful tokens, making it somewhat viable. Tunneling Wurm's hexproof and evasion could find a niche. Avatar of Justice's cost reduction mechanic and blocking ability make it interesting if you can manage your life total. Gorgimera's ability could be powerful, but high-cost limits its flexibility.

In Modern, the faster pace of the format makes casting high-cost creatures challenging, but the utility of Gorgimera's creature removal might find a home with the right support. Ultimate End and Cosmic Key provide interesting strategic elements but may find more success in casual or creative formats. Overall, while these cards offer compelling effects, their high mana costs and slower effects may limit their competitiveness in both Standard and Modern.🧙‍♂️

[SeekerOfTruth007]

I don't know whether mana cost is that prohibitive. People are finding ways to generate 20 to even 40 mana on turn 3 in Standard these days, thanks to Badgermole Cub and Firebending Student among other cards to consider. I think in a Green/X deck, any of these cards would be playable because of the heavy mana acceleration.