Border Guardian
Artifact Creature - Knight
| Power/Toughness:
1 / 1
(CMC 4)
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.
- [UST] Unstable #140 (U)