Cheapest priced copy (Core Set 2021): $0.59 at Card Kingdom, near mint, their price list as of .
Teferi's Tutelage 
Enchantment · Uncommon · Core Set 2021 · #78
When this enchantment enters, draw a card, then discard a card.
Whenever you draw a card, target opponent mills two cards. (They put the top two cards of their library into their graveyard.)
Legal inCommanderPioneerModernLegacyVintage
Not legal inBrawlStandardPauper
2 printings · $0.59 to $0.79 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Core Set 2021 | 78 | Uncommon | $0.59 | $0.79 |
| Core Set 2021 | 296 | Uncommon | $0.69 | $0.79 |
One ruling from Wizards of the Coast
- 23 June 2020You draw a card and discard a card all while the first ability is resolving. Nothing can happen between the two, and no player may choose to take actions. This means that the second ability is put onto the stack after you've finished resolving the first ability.