I know what you're thinking: "ChaoticTempleKnight, what the in the bloody astral world are you talking about?" Well you may or may not heard of Number C1000 and his evolution Number iC1000 from Yu-Gi-Oh! Zexal. Oh, there will be some spoilers by the way. Anyways, The main antagonist of Zexal, Don Thousand, uses 2 extremely powerful number monsters called Number C1000: Numerronius and Number iC1000 Numerronius Numerronia.
Both these monsters have 100,000 attack
Both these monsters have attacks in the ultra high thousands and Number iC1000 has a win the duel effect. Here is there effects specifically from the anime (they haven't been added to the TCG yet if Konami will add them):
Number C1000: Numerronius
Cannot be destroyed by battle except with "Number" monsters. Negate the effects of all "C" monsters your opponent controls, also they cannot attack. At the end of the battle phase: destroy all monster your opponent controls, then special summon from either graveyard, as many monsters as possible that were sent from the field to the graveyard(s) this turn, to your side of the field in face up defense position. if this card would be destroyed, you can destroy 1 other monster you control instead. One per turn, during either player's turn: You can detach 1 Xyz material from this card, then target 1 monster on the field; destroy that target, then choose 1 "C" monster in the extra deck of the destroyed monster's controller and special summon it to their side of the field, ignoring the summoning conditions.
Number iC1000: Numerronius Numerronia
Cannot be destroyed by battle except with "Number" monsters. When a "Number C1000: Numerronius" you control is destroyed: You can Xyz summon this card from your Extra deck, by using it as the Xyz Material. This card cannot be destroyed by card effects, or can declare an attack. Your opponent cannot target other monsters for an attack. During your opponent's end phase, if your opponent did not declare an attack this turn, they lose the duel. When an opponent's monsters declares an Attack: you can detach 1 Xyz material from this card; negate that attack and if you do, gain life points equal to that monster's attack.
Since these cards are not in the TCG yet, let's just assume these are their effects for the TCG.
I know, these cards sound like a nuisance. A terrifying 10 K/100 K attack nuisance. But here is the thing: These cards are not life point damage sponges. Now what cards do I have in mind to stop these monsters? The Yubel cards. Let me share with you Yubel's main effect:
This card cannot be destroyed by battle. You take no battle damage from battles involving this card. Before Damage calculation, when this face-up attack position card is attacked by an opponent's monster: Inflict damage to your opponent equal to that monster's ATK.
Oh boy, if C1000 attacks, it's game over for your opponent. Also if Number C1000's effect activate at the end of the battle phase, Yubel - Terror incarnate can come out onto the field. And yes, your opponent can grab yubel, but it will be in defense mode, and both monsters have zero attack. On a minor note, Terror Incarnate destroys all other monsters during the end phase, so C1000 would get destroyed.... come to think of it though, that would bring out it's next form. You can't substitute a monster if they are all getting destroyed.
But what about Number iC1000? Well let's assume that the opponent is getting frustrated and decides to rank up number C1000 to Number iC1000 (or iC1000's effect was activated by Yubel). Sure, iC1000 can negate battles, but it won't gain any life points and Yubel can't be destroyed by battle or take battle damage. Plus Number iC1000's effect states that an attack has to have been declared which means only Yubel would have to attack. And yes, Number iC1000 cannot be destroyed by card effects, but it doesn't have a negate life point damage effect. Basically, once iC1000 loses it materials, game over for your opponent. But wait a sec, Yubel - Terror incarnate's effect doesn't activate like that. Well here is the solution: Terror Incarnate just has to leave the field to bring out the The Ultimate Nightmare. It is very easy to get out The Ultimate Nightmare.
Keep in mind that this has all been formulated from a scenario where your opponent is not playing spells or traps to counter Yubel, or you have your own counters to your opponent's cards. Also I am not factoring in Yubel's first form tribute requirement. You should be prepared if you are running Yubel. Also this scenario is from an anime perspective or Konami not altering the effect. And this is assuming everything is going as planned and you have prepared your deck to handle Yubel.
If I am missing something, feel free to point it out. But I am pretty sure I am accurate on this whole scenario.