Singularity

Whenever a spell is casted, put an Instability counter on this card.

Whenever a card targets or shoud destroy Singularity, exile that card insted.

Entropy effect — When there are 20 or more Instability counters on Singularity, exile all permanents in the battlefield, all graveyards, all hands and the top twenty cards of each library.

Oh! This thing seems cool, lets touch it.