M:tG card similarity search
3UU · Enchantment
Whenever you cast a spell, proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)
| Name | Mana | Type | Text |
|---|---|---|---|
| Caetus, Sea Tyrant of Segovia | Legendary Creature — Serpent | Noncreature spells you cast have convoke. (Your creatures can help cast those spells. Each creature you tap while casting a noncreature spell pays for {1} or one mana of that creature's color.) At the beginning of your end step, untap up to four target creatures. 3/3 | |
| Thunderscape Familiar | 1R | Creature — Kavu | First strike Black spells and green spells you cast cost {1} less to cast. 1/1 |
| Sword Coast Serpent | 5UU | Creature — Serpent Dragon | Sword Coast Serpent can't be blocked as long as you've cast a noncreature spell this turn. 6/6 |
| Unruly Catapult | 2R | Artifact Creature — Construct | Defender {T}: Unruly Catapult deals 1 damage to each opponent. Whenever you cast an instant or sorcery spell, untap Unruly Catapult. 0/4 |
| Folk Hero | 1W | Legendary Enchantment — Background | Commander creatures you own have "Whenever you cast a spell that shares a creature type with this creature, draw a card. This ability triggers only once each turn." |
| Shorecrasher Mimic | 1G/U | Creature — Shapeshifter | Whenever you cast a spell that's both green and blue, Shorecrasher Mimic has base power and toughness 5/3 until end of turn and gains trample until end of turn. 2/1 |
| Brighthearth Banneret | 1R | Creature — Elemental Warrior | Elemental spells and Warrior spells you cast cost {1} less to cast. Reinforce 1—{1}{R} ({1}{R}, Discard this card: Put a +1/+1 counter on target creature.) 1/1 |
| Arvinox, the Mind Flail | 4BBB | Legendary Enchantment Creature — Horror | Arvinox, the Mind Flail isn't a creature unless you control three or more permanents you don't own. At the beginning of your end step, exile the bottom card of each opponent's library face down. For as long as those cards remain exiled, you may look at them, you may cast permanent spells from among them, and you may spend mana as though it were mana of any color to cast those spells. 9/9 |
| Jubilant Skybonder | 1W/UW/U | Creature — Human Wizard | Flying Creatures you control with flying have "Spells your opponents cast that target this creature cost {2} more to cast." 2/2 |
| Troyan, Gutsy Explorer | 1GU | Legendary Creature — Vedalken Scout | {T}: Add {G}{U}. Spend this mana only to cast spells with mana value 5 or greater or spells with {X} in their mana costs. {U}, {T}: Draw a card, then discard a card. 1/3 |