Card Codex

Old Man Willow

Scryfall

2BG · Legendary Creature — Treefolk

Old Man Willow's power and toughness are each equal to the number of lands you control. Whenever Old Man Willow attacks, you may sacrifice another creature or a token. When you do, target creature an opponent controls gets -2/-2 until end of turn. */*

Similar cards

Name	Mana	Type	Text
Water Wings	1U	Instant	Until end of turn, target creature you control has base power and toughness 4/4 and gains flying and hexproof. (It can't be the target of spells or abilities your opponents control.)
Rimefeather Owl	5UU	Snow Creature — Bird	Flying Rimefeather Owl's power and toughness are each equal to the number of snow permanents on the battlefield. {1}{S}: Put an ice counter on target permanent. Permanents with ice counters on them are snow. /
Dogpile	3R	Instant	Dogpile deals damage to any target equal to the number of attacking creatures you control.
Ambergris, Agent of Law	2RW	Legendary Creature — Dwarf Cleric	Haste Whenever Ambergris, Agent of Law attacks, you may discard your hand and draw two cards. If you do, other creatures you control get +X/+X until end of turn, where X is the number of cards you've discarded this turn. 4/3
Armed Response	2W	Instant	Armed Response deals damage to target attacking creature equal to the number of Equipment you control.
Streetwise Negotiator	1G	Creature — Cat Citizen	Backup 1 (When this creature enters the battlefield, put a +1/+1 counter on target creature. If that's another creature, it gains the following ability until end of turn.) This creature assigns combat damage equal to its toughness rather than its power. 0/2
Animate Library	4UU	Enchantment — Aura	Enchant your library Enchanted library is an artifact creature on the battlefield with power and toughness each equal to the number of cards in it. It's still a library. If enchanted library would leave the battlefield, exile Animate Library instead.
Onward	2R	Instant	Target creature gets +X/+0 until end of turn, where X is its power.
Rush of Blood	2R	Instant	Target creature gets +X/+0 until end of turn, where X is its power.
Join the Dead	1BB	Instant	Target creature gets -5/-5 until end of turn. Descend 4 — That creature gets -10/-10 until end of turn instead if there are four or more permanent cards in your graveyard.