Powerful Clutch Cards, turn a losing game into a winning one!

[Seanoow]

I figured some people would think these cards are over powered even though most of them have very specific conditions. So I put them here instead of Experimental.
With that out of the way, here is a small list of cards I made that can help you turn the game around completely.
My spoilers do not seem to be working properly right now... I will fix it later.


Activate only while you have 2000 or less life points. Pay half your life points.
-When a single level 4 or below monster you control would be destroyed target that monster, that target is not destroyed and the battle phase is ended immediately.
-The targeted monster also gains 1500 attack and defense until the end of your next battle phase, can not be destroyed by card effects, and its effects can not be negated.

Activate only when you have 2000 or less life points, and your opponent declares a direct attack after one of your monsters was destroyed and sent to the graveyard during this turn. Pay half your life points.
-Banish one monster you controlled that was destroyed this turn. Destroy all monsters your opponent controls except for the one that attacked you directly. The monster that declared a direct attack against you has its attack set to 0 permanently. If a monster you control declares an attack against that monster, you take damage equal to that monster's original attack before it was set to 0 before damage calculation.

This card's effects can not be negated.
This card can not be destroyed or returned to the hand by the effect of spell cards or monster effects.
-Activate this card when a level 4 or lower monster you control would be destroyed by battle. Special summon 1 non-number xyz monster from your graveyard that is one rank higher than the level of the attacked monster you control. That xyz monster can not attack your opponent directly, and all battle damage your opponent receives from it is halved.
-If your opponent decides to continue their attack, or declare an attack with another monster, they must attack the xyz monster affected by this card instead of the level 4 or lower monster that was attacked.
-The xyz monster targeted by this card can not leave the field as long as the level 4 or lower monster remains on the field.
-If either this card or the xyz monster targeted by this card leaves the field, banish both this card and the targeted xyz monster, as well as all other xyz monsters in your graveyard and extra deck with the same name.

You can only activate this card during your opponent's turn after they declared a direct attack when you have 2000 or less life points, and your life points are lower than your opponent's. Set your life points to 100
-Negate the attack and end the battle phase. Target one monster in your graveyard that was destroyed by your opponent's card (By battle or effect). Banish that target.
-Your opponent can not declare a direct attack until your second end phase after this card was activated.
-During your second standby phase after activating this card, special summon the targeted monster in face-up attack position. That monster can not be destroyed or banished by card effects until the beginning of your opponents next end phase. The targeted monster also gains 1000 attack and defense until your end phase and it is unaffected by cards that would prevent it from declaring an attack.
You can not inflict damage to your opponent's life points or win the duel until the end of the standby phase the targeted monster is special summoned. (Any instant win conditions during this time are ignored, and have their effects negated for the remainder of the duel).