Immortality Contract's Price

Protection From Everything, Hexproof
This card is treated as a dual Green and Black card.
This spell cannot be Countered.
Can only enter the field when Conjured from
outside the game.
You may only play 1 nonland card each turn.
Each time you discard a card, put 1 counter on this
card. You lose the game if this card has 10 counters.

"Mind the side effects."