The House

Hexproof
The House can only be summoned by sacrificing 2
Platinum Chip Tokens.
During your upkeep, roll a D20. If it lands on 20,
you win. If it lands on anything other than 20, take
5 damage.
When The House attacks a creature an opponent
controls, that opponent must flip a coin. If its heads, that creature is destroyed. If its tails, normal damage is done.