Most rememberable match

[Kaleo42]

I started in rise of the eldrazi.

I like to build rogue decks (not net decks). Back in the days when eeryone thought delver and kessig wolf run were the only good decks I played a {heartless summoning} deck that earned me more first places than any other deck has. In the deck was large creatures ({wurmcoil engine}, {inferno titan}, {frost titan}, {massacre wurm}, and {rune-scarred demon}) that I would play faster than normal with heartless and/or {solemn simulacrum} and the clone profusely with {phantasmal image} and {phyrexian metamorph}. I also ran {havengul lich} for the combo that few people used. I had one game during game day were the combo did something I knew it could but never had at a tourney.

Turn one: {dragonskull summit}
Turn two: {darkslick shores}, tap {B}{U}, heartless summoning.
Turn three: play {mountain}, tap {R}, play {priest of urabrask}, add {R}{R}{R}, pay {R}{B}{U}, play {havengul lich}, pay {R} for his ability on priest (dead due to heartless), pay my last {R} to cast it and add 3x{R} enough to play it again and again for infinite red. Cast {bonfire of the damned} for a billion.

That was his first time seeing the combo. He had done around 8 damage to me with his aggro deck.

[DirtyMustachio]

Casual deck large multiplayer.  Had {filigree sages} {mycosynth lattice} {tolarian academy}

And {memnarch}

Everyone collectively stood up and face palmed

[Bop]

Mine was probably a few months ago just before theros came out. I was playing against a super expensive Selesnya deck with a BW brew I was messing around with. I gave a  {Volatile Rig} lifelink and deathtouch with a  {Vault of the Archangel} as it died and dealt 4 damage to each creature and each player off of a coin flip... It wiped the board and I gained 20 life... I still ended up losing in a super long game but the guy told me he almost scooped at that point.