mtg.wtf

Whenever you cast a spell that [CHOICE A], create a green Elemental creature token named Maro with "This creature's power and toughness are each equal to the number of [CHOICE B]."
— As you create your deck, choose an [A] and a [B] —
• [A1] "is an Elemental" | [A2] "has a watermark or landscape orientation" | [A3] "targets a creature you control"
• [B1] "cards in your hand" | [B2] "card types among cards in your graveyard" | [B3] "artists among nonland, nontoken permanents you control"

Flame Javelin deals 4 damage to any target.

[+2]: Draw two cards, then discard a card.
[–2]: Look at the top two cards of each other player's library, then put any number of them on the bottom of that library and the rest on top in any order. Scry 2.
[–4]: You get an emblem with "Your opponents play with their hands revealed" and "Whenever an opponent draws a card, this emblem deals 1 damage to them."

Other Scarecrow creatures you control get +1/+1.
Whenever another Scarecrow you control enters, destroy target permanent.