Oracle

Creature - Giant 5 / 4

6RR: Monstrosity 3. (If this creature isn't monstrous, put three +1/+1 counters on it and it becomes monstrous.)
When Stoneshock Giant becomes monstrous, creatures without flying your opponents control can't block this turn.

Tournooi-info

Legal in: Vintage, Legacy, Modern, Commander

Officiele rulings

9/15/2013
If blockers have already been declared when Stoneshock Giant’s last ability resolves, those blocks won’t change or become undone.

9/15/2013
Your opponents can’t assign any creature without flying to block that turn, even if that creature had flying or wasn’t on the battlefield under one of your opponent’s control when Stoneshock Giant’s ability resolved.

9/15/2013
Once a creature becomes monstrous, it can’t become monstrous again. If the creature is already monstrous when the monstrosity ability resolves, nothing happens.

9/15/2013
Monstrous isn’t an ability that a creature has. It’s just something true about that creature. If the creature stops being a creature or loses its abilities, it will continue to be monstrous.

9/15/2013
An ability that triggers when a creature becomes monstrous won’t trigger if that creature isn’t on the battlefield when its monstrosity ability resolves.

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