Chainer is abusive combo material, since not only is he a reanimator, but he can be used as both a loophole and a beautiful pull-my-finger card. Chainer/Unnatural Selection The best 3rd card is Aether Burst, which will probably save your nightmares if you have any. After you burst the Dementia Master, turn X creatures into nightmares to zot them permanently. I've only gotten this off once (with only one of each card in possession), but 4 of each should fix that for most U/B control decks, even 'Tog, if you feel like it. (Well, he has to get through somehow, and nuking enemy critters does help). Chainer/Spore Frog Kicks Rites, Tog and other heavy hitting decks in the junk. You can't lose anymore than 3 life per attack, since it costs nothing to blow a spore frog. Chainer/Staunch Defenders Gain while you chain. Can't beat that. Chainer/Pandemonium Chain big creatures to make the process a little more bearable for you by making it less bearable for your opponent.