The death trigger for your insects is odd, but if you run mainly creatures and lands like many green decks, Zask makes mill two look a lot like draw two. #20
It also combos well with another card on this list, Pyrohemia, turning every one point of damage into a +1/+1 counter
If you miss your third land drop, you'll have 3 mana on turn 3
If you already have enough stuff to get you to five mana then Thragtusk is a good final nail in the coffin in the role of life gainer while also rarely being a dead spell in any match up
If I've got enough devotion to black on my board, that might end up being Gray Merchant of Asphodel, which would also be a great recursion target if it finds its way to the graveyard
Island #254 (Kaladesh) by Yeong-Hao Han This may be the very basic land that triggered my fascination with foil basic lands