| Set | Date | Rarity | Treatment |
|---|---|---|---|
| H09 #14 | 2009-11-20 | Uncommon | Standard |
| TSB #101 | 2006-10-06 | Special | Standard |
| TSB #101 | 2006-10-06 | Special | Standard |
| STH #130 | 1998-03-02 | Uncommon | Standard |
Whenever a Sliver becomes blocked, that Sliver gets +1/+1 until end of turn for each creature blocking it.