Who plays cards? Minion or methusleah?

My question is about cards like "Visit from the Capuchin" or "Hukros" or "Agaitas".

Visit's counters are removed when you play a card. Is that a card the methusleh plays, such as an event or master? Or is that basically any card?

Hukros, for example, stores cards, but masters and events seem to be stuck on him forever if placed, because only HE can play stored cards at any time.

Agaitas power seems to trigger when the methuselah plays a card. Again, ANY card, or just masters and events?

There was a debate last game over whether or not to remove a counter from capuchin when On the Qui Vive was played.

The Methuselah plays all the cards. Some cards are also played by the minion.

Master cards, event cards and conviction cards (i.e. not minion cards) are played by the Methuselah and not the minion.

Minion cards are played by both the Methuselah and the minion. (Exception: Nosferatu Putresence, which isn't played by a minion at all, despite being a minion card. Those wacky Jyhad designers.)

Visit from the Capuchin's counters aren't removed when you play a card, but when you would replace a card.

Name: Visit from the Capuchin
[FN:R2, Third:R]
Cardtype: Master
Unique master.
Put this card into play with 4 counters on it. You get +X hand size, where X is the number of counters on this card. Each time you would draw to replace a card (not counting the card to replace the Visit), burn a counter from this card instead. Burn this card if it has no counters.

That is, whenever you (Methuselah) would replace a card. It doesn't matter if it's a master or a minion card. It doesn't matter if you played the card or if it was played by a minion you control (note that, in this case, you - Methuselah - are still playing the card).

Visit from the Capuchin triggers on any card that gets replaced, when it would be replaced (during the untap phase, for a Wake with Evening's Freshness, for instance).

Agaitas triggers on any card that is replaced immediately (not Wake with Evening's Freshness, for instance). [LSJ 20020718]

Yes, you should remove a counter from Visit from the Capuchin when you would replace the On the Qui Vive.

Ankha wrote:

I think you need a ready minion in order to play Nosferatu Putrescence.

Incorrect.

[LSJ 19980407]

LSJ wrote:

[Nosferatu Putrescence is... ] the only minion card that doesn't require a minion to play it (only a minion to play it on).

LSJ's reasoning

LSJ wrote:

* Only minions in combat can play combat cards.
* NosPutr says that you can play it even if you aren't involved in the
current combat (overriding the rule above).
* The "you" above is the Methuselah, not any of her minions. ("You" is
used for players, "this minion" is used for minions.)

The above, together, led me to beleive that NosPut was played as
some 'sort of "out-of-phase" Master Card that does not cost a
master phase action', as you put it.