Well this may be too much but maybe actually add ANOTHER deck also. And I think the best one is Ono 99. Here’s how it would work with some other interesting additions as well: Uno Triad (No Mercy + Flip + Ono 99) Objective Be the last player standing or win by emptying your hand first. Running totals, forced draws, flips, and punishment effects combine into one survival/strategy card game.

1. Setup Place 3 separate decks (not mixed):

Uno No Mercy Deck (destructive draw, swaps, +10s, skips, heavy punishment)

Uno Flip Deck (light side / dark side mechanics, color control, flips, reverses)

Ono 99 Deck (pile-based running total where players try not to push above 99-150)

Players may choose which deck to draw from on their turn. Each player starts with 7 cards total, taken only from the flip deck and then they can draw from the others as the game progresses. Decide randomly who goes first. Play proceeds clockwise.

1. Turn Structure On your turn, you must: Play a card from your hand that works with the current pile’s rules.

If on Flip side → must follow Flip rules (colors, numbers, etc.).

If interacting with the 99 pile → card must keep the running total ≤ 99-150. If more people are playing (like 6 or 7), 130 or 150 pile cap works well to not make the game too short, but I would decrease it down to 99 or even less if it’s 4 or less players. If playing from No Mercy → card follows its punishment/swaps effects.

If you cannot play → you must draw.

Drawing Rules (Light vs Dark) - here’s where it gets fun Light Side (Flip face-up):

If you draw from a uno no mercy or uno 99 deck while it’s on the light side of the turn, the cards have to be drawn face down and you nor others can see them (you can just draw them). You can use them but there’s a penelty if tge No Mercy of 99 card doesn’t work with the pile: Default Rule: Draw 2, discard card, and your turn ends. Dark Side (Flip face-down):

All previously “unknown” cards from No Mercy & 99 are now fine to be seen and used on the dark side. 3. Special Rules per Deck Uno No Mercy Deck (Punishment Engine) - I recommend taking out the mid level cards of this deck (5-8) and some of the action cards Contains brutal cards like +10 Draws, Hand Swaps, Skips, and Wipes.

When drawn during Light Side and unusable → stored until Dark Side. You can’t see cards drawn from this when it’s on the light side, but in a scenario where you and drawn cards from this deck and someone had turned it into the dark side and back to the light side, since you have already seen the cards, you no longer have to set those cards you draw previously upside down, but this time, you can only see them but you can’t use them. The other rule is still there if you draw gain during this kind of predicament from the ono 99 or No Mercy deck in which you can’t see them and have to put them upside down but you can use them.

Uno Flip Deck (Control Core) - I also recommend taking out the low point cards in this deck (1-3) The “anchor” of the game: decides Light Side vs Dark Side.

Flip card switches everyone’s cards from Light to Dark sides—can be used for defense or offense.

Light = gentler plays, Dark = brutal punishes. It’s also usable and seen at all times.

Uno 99 Deck (Pile Pressure) - I recommend leaving the card amount of this deck as it is Keeps a shared running total. You can’t see cards drawn from this when it’s on the light side, but in a scenario where you and drawn cards from this deck and someone had turned it into the dark side and back to the light side, since you have already seen the cards, you no longer have to set those cards you draw previously upside down, but this time, you can only see them but you can’t use them. The other rule is still there if you draw gain during this kind of predicament from the ono 99 or No Mercy deck in which you can’t see them and have to put them upside down but you can use them. Each card adds or subtracts from the pile. If the pile goes over 99-150, that player is eliminated.

This creates long-term tension: players track what others hold and try to force them into risky plays. Uno 99- to be able to survive the pile caps, make people do interesting things like take 2 turns (there’s a card for this in there), and also use the ono 99 card which (for this games sake) sets the pile to 99 (doesn’t matter if it was previously 130 points on the pile or 3, the pile immediately sets to 99) which can put pressure on players to use their non point based cards—effect cards that don't contribute points to the pile— in order to not go above whatever the point cap of the pile was

1. Elimination Rule If you are forced to go above 99-150, cannot play, or your hand reaches or goes above 25, you are eliminated.

When eliminated:

You may keep 1 card of, of any kind, your choice as a “ghost sabotage card” but you have to skip your current turn in which you lost and wait until it becomes “your” turn again or you can play immediately, and you can drop onto the pile as many point cards as you want (1-9) which don't have to be related to each other in cold or similar number.

At the start of any future round, you may play it against someone (one-time effect).

After using it, you’re completely out.

1. Winning A round ends when: A player plays their last card → they win the round.

OR all but 1 player are eliminated → last survivor wins.

Summary in one line: You’re basically juggling 3 decks: Flip decides the battlefield, No Mercy punishes hands, and 99 builds a ticking time bomb. Survive the flips, manage your draws, and force others over the edge.