| 10/4/2004 |
If the Oyster untaps during the draw step before its ability to add a -1/-1 counter resolves, the -1/-1 counter effect resolves and adds a -1/-1 counter after the -1/-1 counters are removed due to being untapped. |
| 9/25/2006 |
The activated ability can target only a tapped creature. |
| 9/25/2006 |
Activating the ability creates a continuous effect that works only as long as Giant Oyster remains tapped, a repeating delayed triggered ability that's in effect only as long as Giant Oyster remains tapped, and a delayed triggered ability that triggers when Giant Oyster untaps or when it leaves the battlefield. |
| 9/25/2006 |
Giant Oyster's ability can be activated during your upkeep, and the creature will get a -1/-1 counter during the draw step that follows it. |
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