10000 yugioh cards TEN THOUSAND DRAGON IS COMING WITH FREE DREAM TICKETS! may be 1st or Unlimited Edition Ten Thousand Dragon - Yu-Gi-Oh!

Here is the Season 4 Thursdaddy Invitational Champion, Patrick Cowe, and his custom card, Patcaster Mage

It can get as big as you need it to get to slam into your opponent or their creatures for lots of damage in the late game

Whenever a card says investigate, you create a colorless artifact token with the ability , Sacrifice this: Draw a card. That means you can spend 2 mana later, sacrifice the Clue, and draw a card when you need it

They kind of go hand-in-hand for the most part, and while there's still a few non-humans in here, they generally seem fewer overall and fit the theme more (see Conclave Mentor for a solid example here)

The short answer is an ability which can add mana to your mana pool, and which doesnt have any targets

ELECTRO, ASSAULTING BATTERY Putting this into Standard with Vivi might well be Assault, or Battery