My longest-running use of Lim-Dûl's Vault was in my "HHT" deck, something I've written about here before. A few times, really. In fact, it was the subject of
one of my early CPA articles (but take note of my obligatory warning about how articles from that era had some sort of software corruption thing happen that replaced a bunch of ordinary punctuation marks with unicode replacement characters, so the article can be read, but it looks weird).
I also posted some stories and stuff about it over the years. Let's see...
http://www.casualplayers.org/forums/threads/funniest-magic-story.10293/page-2#post-126447
http://www.casualplayers.org/forums/threads/multiplayer-discard-deck.11513/page-2#post-154479
http://www.casualplayers.org/forums/threads/donate.13594/#post-193803
http://www.casualplayers.org/forums/threads/net-decking-and-you.14436/#post-221246
http://www.casualplayers.org/forums...-going-to-kill-magic.16716/page-2#post-292085
http://www.casualplayers.org/forums/threads/eldritch-moon-card-image-gallery.17088/#post-303214
http://www.casualplayers.org/forums/threads/magic-memories-academy-rector.17194/#post-305514
http://www.casualplayers.org/forums/threads/the-notorious-m-r-b.17263/#post-306934
So yeah, it's generally territory that has been covered. I don't want to yammer on about Donate + Illusions at every opportunity. Also, this was primarily a Necropotence deck and I don't want to just blatantly stall ever doing some giant thread about Necropotence. But HHT is bound to come up in discussions about "memories" because it was probably my most-played deck ever. And LDV was a card in the deck. It played a prominent role.
I linked to an assortment of threads that touched on the topic of Necro-Donate. My version was "Here, Hold This." Train called the same concept "Have a Cigar." The most popular version of the deck was known as "Trix" and that name was, inconsistently, extended to
all decks exploiting the Donate + Illusions of Grandeur combo. Here at the CPA, Istanbul was the person vocally doing this. He had a severe dislike for the combo and it had been the kill condition in my favorite deck, so that was the root of some division between us. He's long-gone now and it doesn't really matter, but I always kind of regretted that afterward because I rather liked Istanbul otherwise and had a lot of respect for him, so the mere fact that we were on opposite ends of the liking/hating Donate spectrum seems like such a petty source of any potential resentment. Then again, I was probably just reading too much into it. Spiderman and I have argued about
way sillier things than that like 5,000 times and I still hold him in high regard (just don't tell him I said that). Well, anyway, um...
I covered "Trix" briefly in my Combo Breakfast article. It got its name because of the existing trend of naming combo decks after breakfast cereals and because Illusions of Grandeur had a white rabbit in its art. In that last forum post I linked to, I mentioned the convergent evolution of my "HHT" and the slightly older Extended tournament deck, "Dance, Dance Donate Illusions." I'll probably go into more detail on that story some other time. But one big point of interest is the use of Lim-Dûl's Vault in the contrast between Trix and "Dance, Dance Donate Illusions." Ultimately, Trix was by far the more popular and more successful deck, but both had their advantages and disadvantages. There was a kind of initial philosophical difference between the two. Both decks started with the premise of using Donate/Illusions as the kill. Both decks used Necropotence as an engine, which is enhanced by the lifegain from Illusions. Both decks used Dark Ritual to accelerate Necropotence and/or Illusions. Both decks used two of the best disruptive cards in the format: Force of Will and Duress. Both decks used Demonic Consultation as an instant-speed tool to find a game-winning combo piece. But DDDI acted as a control-combo deck, playing more countermagic and aiming to keep the opponent from doing anything important for the first few turns while setting up the combo. Trix was all-in on a fast win, using Mana Vault for more speed. And, of course, Trix used Vampiric Tutor. DDDI (and HHT) used Lim-Dûl's Vault. Vampiric Tutor made more sense for sheer speed, but LDV was the crucial tutor for a control-combo build.