Land
T: add 3 to your mana pool
When ~this~ leaves the battlefield, target opponent may pay X, where X is the number of sorcery spells with converted mana cost X cast this turn. If that player doesn't, ~this~ deals 4 damage to target creature. When a creature damaged this way is put into a graveyard from the battlefield this turn, return it to the battlefield under your control
All creatures become Zombies
--Just one tank proves better than even the greatest alarm
– Thunie Slageshass Trueeye

---

3U
Instant
any number of target artifact creatures get -4/-0 until end of turn

---

RWW
Artifact
T, Pay 2 life: target player loses 3 life
Tap an untapped permanent you control, Discard a land card: distribute the discarded card's converted mana cost charge counters on two target green creatures

---

AlexChurchill/MagicCardGenerator