The interaction between Ikra Shidiqi, the Usurper, flash in Stoneskin after (no) blockers have been declared, before combat damage is dealt seems quite fun to pull off at least once too
Legendary Creature - Human Advisor Color tag templates(None) Kederekt Parasite Whenever an opponent draws a card, if you control a red permanent, you may have this creature deal 1 damage to that player
702.78a Persist is a triggered ability
There are lots of ways to go about assembling the combo and lots of ways to build the deck
Its one thing for a combo to win a game and end it, but the worst banned cards will stop your opponents from doing anything from early in the game (think about cheating out a Sundering Titan on turn 1), but wont let you win for a long time
For players who want a real challenge, Deep Trouble has four difficulty settings to choose from