M:tG card similarity search
4UUU · Legendary Enchantment
All creatures get -X/-0, where X is the number of cards in your hand.
| Name | Mana | Type | Text | 
|---|---|---|---|
| Credit Voucher | 2 | Artifact | {2}, {T}, Sacrifice Credit Voucher: Shuffle any number of cards from your hand into your library, then draw that many cards. | 
| Wolfcaller's Howl | 3G | Enchantment | At the beginning of your upkeep, create X 2/2 green Wolf creature tokens, where X is the number of your opponents with four or more cards in hand. | 
| Dreadwaters | 3U | Sorcery | Target player mills X cards, where X is the number of lands you control. | 
| Sylvan Yeti | 2GG | Creature — Yeti | Sylvan Yeti's power is equal to the number of cards in your hand. */4 | 
| Lucid Dreams | 3UU | Sorcery | Draw X cards, where X is the number of card types among cards in your graveyard. | 
| Snowblind | 3G | Enchantment — Aura | Enchant creature Enchanted creature gets -X/-Y. If that creature is attacking, X is the number of snow lands defending player controls. Otherwise, X is the number of snow lands its controller controls. Y is equal to X or to enchanted creature's toughness minus 1, whichever is smaller. | 
| Terror Tide | 2BB | Sorcery | Fathomless descent — All creatures get -X/-X until end of turn, where X is the number of permanent cards in your graveyard. | 
| Wolf in _____ Clothing | 3B | Creature — Wolf Guest | When this creature enters the battlefield, you may put a name sticker on it. When you do, up to X target creatures each get -1/-1 until end of turn, where X is the number of unique vowels on that sticker. (The vowels are A, E, I, O, U, and Y.) 2/3 | 
| Opaline Bracers | 4 | Artifact — Equipment | Sunburst (This enters the battlefield with a charge counter on it for each color of mana spent to cast it.) Equipped creature gets +X/+X, where X is the number of charge counters on Opaline Bracers. Equip {2} ({2}: Attach to target creature you control. Equip only as a sorcery.) | 
| Porcuparrot | 3R | Creature — Bird Beast | Mutate {2}{R} (If you cast this spell for its mutate cost, put it over or under target non-Human creature you own. They mutate into the creature on top plus all abilities from under it.) {T}: This creature deals X damage to any target, where X is the number of times this creature has mutated. 3/4 |