This works for single and multiplayer and is a standard format. Use {curiosity} and {psychosis crawler} if you want to use mono blue there is plenty of draw cards to help you out on turn 5 you could unleash on your opponent or do a u/g and could pop it out quickly with the mana elves. It is also good for hexproof players bc it doesnt target any it psychosis crawler says all opponents
Sorry, but this is a Bombo. While damage causes a loss of life, loss of life is not damage. {Curiosity} is looking at the damage dealt by the creature, but {Psychosis Crawler} causes a loss of life instead of damage. ðŸ"¨