If you don't know what 3CB is, check /r/threecardblind or MTG Wiki.
Your deck must 6-0 (WW) against the following deck:

And there must be two Black Lotus in you deck:

Type the cardname and click the Check button.
Try "Barren Glory" and "Laboratory Maniac".
Input the full english name. JPN and CHT cardnames also works!
/
| Code | Status | Cardname |
|---|
All non-space characters are encrypted as *
I use "Code" instead of "NO." because the answers may change.
DO NOT discuss the answers publicly.
Reddit me /u/buffalobillkimo if you find any answer not listed above
2020-01-08 Thassa's ****** sure beats the chamption. But it's 2020 now, too late to be a new answer of 2019 edition.
2020-03-27 Quiet a few asked me about Twilight Shepherd, so I add it into Common Wrong Answers.
2020-06-12 *******, the Spiteful sure beats the chamption. But it's 2020 now, too late to be a new answer of 2019 edition.

The game is a draw since no one would play their stuff first.

With only two lotuses, you can't cast spells that cost mana of 3+ colors.

Its ability won't trigger when it attacks the Champion.

Not able to race 9 soldiers on the draw.
2019-11-27 Thanks /u/Gibblerish for the 22th answer!