Tower Climb

Legendary Sorcery

Target legendary creature you control fights target creature you don't control. If yours survives, put a +1/+1 counter on it and you may have it fight another target creature you don't control. You may repeat this process any number of times. If your creature survives 10 or more fights and is your commander, you win the game. Otherwise, draw seven cards and you gain 15 life.

Admittedly, a sufficiently large commander, or something with indestructible, basically makes this card read "Pay 8, you win the game."

But 8 mana, a commander on board and 10 creatures it can take on is quite a lot of action.

Still, this can very easily go into something like a Xenagos, God of Revels deck as a surefire wincon

But hey, why can't Gruul have a fight wincon? Look at what other colors get. Gruul deserves some love, too.

More MK or wild

You actually did a fantastic job capturing that, depending if Sub Zero is held by Bi-Han or Kuai Liang

:)

FATALITY

Sorcery

Destroy target creature or planeswalker. You gain life equal to the highest value among its mana cost, power, toughness or loyalty. If you control your commander, draw a card.

Anybody feeling a Mortal Kombat theme next for a bit? :)

If not, that's okay you can do wild <3

Angel of the Open Graves

Creature - Angel Warrior

Flying, deathtouch, menace

Whenever Angel of the Open Graves attacks, you may have the defending player gain 2 life. If you do, Angel of the Open Graves must be blocked by an additional creature if able. You may have them gain 2 life any number of times. Each time, Angel of the Open Graves must be blocked by an additional creature.

4/4

Is this a color bend or a full break?

Either way, make another mono colored card that bends or breaks its color in a unique and interesting way

Brother John

Legendary Creature - Human Cleric

Vigilance

Whenever a spell or ability you control would put one or more +1/+1 counters on a single target you control, you may instead put that many -1/-1 counters on target creature.

2/3

So I recently began playing BECMI, which is D&D based on AD&D.

Not sure if AD&D was like this, but in BECMI some spells are reversible. So "Cure Light Wounds" heals 1d6+1 but it can ALSO be cast to deal 1d6+1 points worth of damage.

I rolled up a Cleric, but didn't have a name for him. Someone at the table jumped in and called him Brother John, and that became canon lol

Wild

C'tthlugl the Insatiable

Legendary Creature - Elder Horror Leviathan

Shroud

When you cast C'tthlugl, discard half of your hand rounded up. Then pay half of your life rounded up. Then sacrifice half of your permanents rounded up. Then, when C'tthlugl enters, if it was cast, each opponent does the same.

5/5

Make a card with a Ward cost that makes you skip your next [something], for example;

• Ward - Skip your next upkeep.
• Ward - Skip your next main phase.
• Ward - Skip your next turn.

Obviously I forgot to add "this turn." at the very end of Riptide Caller up there, lol oops

This is for an unset.

Draw a card

Sorcery

Name a card, then draw the artwork of that card in the blank artwork box above. Call over a judge and let the judge examine the card. If the judge feels your artwork is close enough to the artwork of the named card, cast it without paying it's mana cost.

I didn't spent $20,000 on a bachelor's degree in modern art for nothing!

Lmao

UNSET WILD

Riptide Caller

Creature - Siren

Flash

Flying

When Riptide Caller enters the battlefield, destroy target creature that entered the battlefield.

She sits upon the calm waters far beyond the reach of the riptide, beckoning those foolish enough to enter them for her.

2/3

Removal on a stick is always a valid option in any format

Y'all want to top it off with a Siren commander? Let's make it spicy and go 3-color. Shard or wedge, your choice.

I assume you mean a "vehicle" as a driving force behind the mechanics, and not the actual subtype? Because I'm going to take your challenge way to literally and do both lol

Prisoner Transport

Artifact - Vehicle

: Change the target creature of a spell or ability to another target creature. Activate this ability only if Prisoner Transport is crewed.

Crew 6

3/3

This allows you to take the creature your opponent chooses, and say "no."

Regarding guild colors, Boros has the fewest truly unique Planeswalker options. Many such as Ajani gains red temporarily before calming down and returning to mono-white or selesnya. Huatli is technically Naya. Nahiri only "recently" became Boros. Lukka is only Boros by extension with the flip-side of Lukka, Wayward Bonder

The only "true" Boros Planeswalker to date is Quintorius Kand.

So your challenge is to make a unique, true Boros Planeswalker that isn't just another "Mono-white but angry" character.

Asder, I love it!!

Elf Ball would be an absolute riot here lmao

The Crowd Goes Wild

Enchantment

At the beginning of your upkeep put a wild counter on The Crowd Goes Wild. Then create a number of 1/1 Citizen tokens that are all colors equal to the number of wild counters. They have haste.

"Unfortunately for the participants, nothing in the rule book says the crowd can't join the fight!" - Siv the Announcer

Because who doesn't want another Assemble the Legion? Lol

Make Siv the Announcer as the face for a Commander Precon!

Obviously Siv must be to some degree to include The Crowd Goes Wild.

The rest is up to you.

I Know You Are,

Sorcery

Target creature an opponent controls becomes a copy of target creature you control and target creature you control becomes a copy of target creature an opponent controls. These events happen simultaneously.

but what am I?

Aside for the pun, the benefit of forcing identity changes is that each player maintains control of their own permanents. No "return to owner" nonsense involved.

Also, you can go after two different opponents. Make the commander of one become a 1/1 token, and make your 1/1 token become the powerhouse of someone else's.

Arguably this works better under Silverquill with their Inklings and text change, but based on color theory this is a Simic mechanic.

Although I suppose Silverquill / Orzhov could still benefit from a nice switcheroo card so take your pick:

I Know You Are,

Sorcery

Target creature an opponent controls becomes a copy of target creature you control and target creature you control becomes a copy of target creature an opponent controls. These events happen simultaneously.

but what am I?

Excellent challenge! More Strixhaven senior pranks!

and remain.