You get a big bodied location that gives you a lot of lore plus the Heave Together Now ability is activated immediately and it costs you nothing
For example, cards that allow you to deliberately return cards to your card - such as the item card Perplexing Signposts - or play cards for free, letting you efficiently pop Merlin, Goat in and out of your hand for a lore each time
Triggers for the beginning of combat, when a creature attacks, when it is blocked, when it deals or is dealt damage, or any other combat trigger will all trigger again on any of these extra combat steps.\ What Happens if I Have Additional Combats and an Effect That Says At End of Combat
Bugenhagen, Wise Elder), and at least 2 more that care about power (Lifestream's Blessing)
But the easy winners here are Heroic Intervention, a way to protect your entire board from a wipe, and Cyclonic Rift - ironically one of the few board wipes that can get around Heroic Intervention
Although you'd be in mono-Black, likely with Cabal Coffers and other mana ramps, so that may not really be something you care about
