Klaas bingo

When Klaas bingo enters the battlefield, look at
the top card of your library and note down its
name. Shuffle your library. Repeat this until you
have noted 7 unique names.
If any card noted this way enters the battlefield
remove their name from this list and add one
Bingo counter to Klaas bingo
{t}: if there are 5 or more Bingo counters on
Klaas bingo, shout "bingo" and draw a card