Merrow is untapped as a cost from that ability, so repeat step 3 and 4 until you have no deck
Dracosaur has the classic Baneslayer issue of needing to survive a turn before doing anything interesting, though its ridiculously hard to tussle with in combat
Land Color tag templates(None) Badlands Land - Swamp Mountain Color tag templates(None) Bayou Land - Swamp Forest Color tag templates(None) Bloodstained Mire , Pay 1 life, Sacrifice this land: Search your library for a Swamp or Mountain card, put it onto the battlefield, then shuffle
There are no requirements for the effect, letting you get any of your best Rats out from your library and into your hand at your upkeep
There werent a ton of creatures yet, so you filled your deck with what you had
He's a 6-drop with a six loyalty, then you +1 him to reveal the top card of your library and deal damage equal it's cost to every foe, and then draw it too