some generic cards

|Shieldwyrm|0|ASH|Dragon/Effect|Earth|3||800|1900|FLIP: Target 1 face-up Special Summoned monster your opponent controls: Shuffle it into its owners Deck.|

|Speartongue Serpent|0|ASH|Reptile/Synchro/Effect|Earth|2||1800|1000|(Xyz) 2 Level 2 Monsters When this card destroys an opponents monster by battle: You can detach 1 Xyz Material from this card; Inflict damage to your opponent equal to the destroyed monsters ATK. If the attack target is not destroyed, send it to your opponents Graveyard during the End Phase.|

First card is great support for both anti-swarm and flip decks. Add it fo sho.

Second is nice but the last effect doesn't really mesh with the first, so it should be worded "If this card attacks a monster and it is not destroyed,..."

that is basically what it says but shorter