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 |
|---|---|---|---|
| Staff of the Death Magus | 3 | Artifact | Whenever you cast a black spell or a Swamp enters the battlefield under your control, you gain 1 life. |
| Mercurial Geists | 2UR | Creature — Spirit | Flying Whenever you cast an instant or sorcery spell, Mercurial Geists gets +3/+0 until end of turn. 1/3 |
| Blinding Flare | R | Sorcery | Strive — This spell costs {R} more to cast for each target beyond the first. Any number of target creatures can't block this turn. |
| Kor Castigator | 1W | Creature — Kor Wizard Ally | Kor Castigator can't be blocked by Eldrazi Scions. 3/1 |
| Blisterspit Gremlin | R | Creature — Gremlin | {1}, {T}: Blisterspit Gremlin deals 1 damage to each opponent. Whenever you cast a noncreature spell, untap Blisterspit Gremlin. 1/1 |
| Overmaster | R | Sorcery | The next instant or sorcery spell you cast this turn can't be countered. Draw a card. |
| Clockwork Steed | 4 | Artifact Creature — Horse | Clockwork Steed enters the battlefield with four +1/+0 counters on it. Clockwork Steed can't be blocked by artifact creatures. At end of combat, if Clockwork Steed attacked or blocked this combat, remove a +1/+0 counter from it. {X}, {T}: Put up to X +1/+0 counters on Clockwork Steed. This ability can't cause the total number of +1/+0 counters on Clockwork Steed to be greater than four. Activate only during your upkeep. 0/3 |
| Slither Blade | U | Creature — Naga Rogue | Slither Blade can't be blocked. 1/2 |
| Staff of the Sun Magus | 3 | Artifact | Whenever you cast a white spell or a Plains enters the battlefield under your control, you gain 1 life. |
| Frolicking Familiar | 2U | Creature — Otter Wizard | Flying Whenever you cast an instant or sorcery spell, Frolicking Familiar gets +1/+1 until end of turn. 2/2 |