With many formats revolving around 20 life, dealing 10,000 damage is way overkill, and it's most likely there for flavor since Final Fantasy 's Jumbo Cactuar also has an attack called 10,000 Needles that deals that much damage to one party member
I wanted to free up some sideboard space and included Sea Sprites in the main
Magic Companion lets you automate match results, use a built-in life counter, and get notifications of new rounds
A creature has to go directly from the battlefield to the graveyard in order to count as dying
The cost reduction is quite good, then on any turn you just need a point of life lost to Snapcaster Mage a spell
Research Thief Flashing this in after your opponent has declared no blockers to your artifact creatures could give you a nice amount of card draw, but a 3/3 for five mana just isn't all that good