Mathematician
EARTH/Spellcaster
Level 3
1500/500
When this card is Normal Summoned: You can send 1 Level 4 or lower monster from your Deck to the Graveyard. When this card is destroyed by battle and send to the Graveyard: You can draw 1 card.

Source: https://yugiohblog.konami.com/articles/?p=6064

https://www.youtube.com/watch?v=oNMzQLBu_Rc