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General Magic / Re: what cards can double this effect.
« on: August 12, 2022, 05:08:48 pm »Conversely, if Mathas triggers twice he can give the effect to the same creature twice. That creature will get a second bounty counter, but it doesn't actually matter; one of them could be removed and it would make no difference, you'd still get two cards when it died.I completely missed that; the second portion of his ability text (the death trigger) specifies that as long as the creature has a (i.e. at least one) bounty counter on it, opponents draw one and gain two life when it dies. It doesn't matter how many counters are on it, as the death trigger only occurs once.
That being said, duplicating the death trigger that actually draws cards is much more difficult because you don't actually control it; Mathas's ability specifically states that the creature with the bounty counter on it has the ability, "When this creature dies..." Since the opponent's creature and not Mathas is the source of that trigger, you don't control it, so things like Teysa Karlov, Lithoform Engine, and Strionic Resonator would not copy it. You can copy the end step trigger that puts bounty counters on things, but not the draw triggers.
Also, Chevill, Bane of Monsters or anything else that uses bounty counters does not work with Mathas. Ruling on 08/25/2017: "Creatures that receive a bounty counter other than from Mathas’s ability resolving won’t gain the triggered ability. Creatures that receive more than one bounty counter as Mathas’s ability resolves (most likely due to Doubling Season) won’t have the ability multiple times." The reverse is not true, however; Chevill's ability does not care where the bounty counters came from, so his ability would trigger off counters placed by Mathas.