M:tG card similarity search
4 · Artifact Creature — Knight
Whenever you cast a silver-bordered spell, put a +1/+1 counter on Border Guardian. Whenever you cast a black-bordered spell, Border Guardian can't be blocked this turn. Whenever you cast a white-bordered spell, Border Guardian gains double strike until end of turn. 1/1
| Name | Mana | Type | Text | 
|---|---|---|---|
| Saruman the White | 4U | Legendary Creature — Avatar Wizard | Ward {2} Whenever you cast your second spell each turn, amass Orcs 2. (Put two +1/+1 counters on an Army you control. It's also an Orc. If you don't control an Army, create a 0/0 black Orc Army creature token first.) 4/4 | 
| Tattermunge Duo | 2R/G | Creature — Goblin Warrior Shaman | Whenever you cast a red spell, Tattermunge Duo gets +1/+1 until end of turn. Whenever you cast a green spell, Tattermunge Duo gains forestwalk until end of turn. (It can't be blocked as long as defending player controls a Forest.) 2/3 | 
| Prismari Apprentice | UR | Creature — Human Shaman | Magecraft — Whenever you cast or copy an instant or sorcery spell, Prismari Apprentice can't be blocked this turn. If that spell has mana value 5 or greater, put a +1/+1 counter on Prismari Apprentice. 2/2 | 
| Vine Gecko | 1G | Creature — Elemental Lizard | The first kicked spell you cast each turn costs {1} less to cast. Whenever you cast a kicked spell, put a +1/+1 counter on Vine Gecko. 2/2 | 
| 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 | 
| Setessan Oathsworn | 1GG | Creature — Satyr Warrior | Heroic — Whenever you cast a spell that targets Setessan Oathsworn, put two +1/+1 counters on Setessan Oathsworn. 1/1 | 
| Pheres-Band Thunderhoof | 4G | Creature — Centaur Warrior | Heroic — Whenever you cast a spell that targets Pheres-Band Thunderhoof, put two +1/+1 counters on Pheres-Band Thunderhoof. 3/4 | 
| Centaur Battlemaster | 3GG | Creature — Centaur Warrior | Heroic — Whenever you cast a spell that targets Centaur Battlemaster, put three +1/+1 counters on Centaur Battlemaster. 3/3 | 
| Dawnbringer Charioteers | 2WW | Creature — Human Soldier | Flying, lifelink Heroic — Whenever you cast a spell that targets Dawnbringer Charioteers, put a +1/+1 counter on Dawnbringer Charioteers. 2/4 | 
| Akroan Skyguard | 1W | Creature — Human Soldier | Flying Heroic — Whenever you cast a spell that targets Akroan Skyguard, put a +1/+1 counter on Akroan Skyguard. 1/1 |