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 |
|---|---|---|---|
| Flux Channeler | 2U | Creature — Human Wizard | Whenever you cast a noncreature spell, proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.) 2/2 |
| Sprite Dragon | UR | Creature — Faerie Dragon | Flying, haste Whenever you cast a noncreature spell, put a +1/+1 counter on Sprite Dragon. 1/1 |
| Aragorn, the Uniter | RGWU | Legendary Creature — Human Noble | Whenever you cast a white spell, create a 1/1 white Human Soldier creature token. Whenever you cast a blue spell, scry 2. Whenever you cast a red spell, Aragorn, the Uniter deals 3 damage to target opponent. Whenever you cast a green spell, target creature gets +4/+4 until end of turn. 5/5 |
| Ishai, Ojutai Dragonspeaker | 2WU | Legendary Creature — Bird Monk | Flying Whenever an opponent casts a spell, put a +1/+1 counter on Ishai, Ojutai Dragonspeaker. Partner (You can have two commanders if both have partner.) 1/1 |
| Arena Athlete | 1R | Creature — Human | Heroic — Whenever you cast a spell that targets Arena Athlete, target creature an opponent controls can't block this turn. 2/1 |
| Taurean Mauler | 2R | Creature — Shapeshifter | Changeling (This card is every creature type.) Whenever an opponent casts a spell, you may put a +1/+1 counter on Taurean Mauler. 2/2 |
| Arcee, Acrobatic Coupe | Legendary Artifact — Vehicle | Living metal (As long as it's your turn, this Vehicle is also a creature.) Whenever you cast a spell that targets one or more creatures or Vehicles you control, put that many +1/+1 counters on Arcee. Convert Arcee. 2/2 | |
| Mold Adder | G | Creature — Fungus Snake | Whenever an opponent casts a blue or black spell, you may put a +1/+1 counter on Mold Adder. 1/1 |
| Citanul Druid | 1G | Creature — Human Druid | Whenever an opponent casts an artifact spell, put a +1/+1 counter on Citanul Druid. 1/1 |
| Mistfire Adept | 3U | Creature — Human Monk | Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.) Whenever you cast a noncreature spell, target creature gains flying until end of turn. 3/3 |