Rust
{G}Instant
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Counter target activated ability from an artifact source. (Mana abilities can't be targeted.)
Official rulings
- Can’t be used on mana abilities because they don’t use the stack. They’ve already resolved by the time you get priority. (2004-10-04)
- Activated abilities contain a colon. They’re generally written “[Cost]: [Effect].” Some keywords are activated abilities and will have colons in their reminder text. (2016-06-08)
Cards like this
Functionally similar cards by meaning — playable in Rust’s colours.
