Table of Contents show How Does Incubate Work
Its very easy to hit something with Bear Down, and in the case of this card even hitting a token of some kind is acceptable, because you dont use up an entire card to do it, since later in the game you get an efficient creature that is hard to block
Another infinite combo revolves around sacrificing Gravecrawler to Phyrexian Altar and pinging an opponent with Diregraf Captain to net you the mana needed to cast Gravecrawler from your graveyard again
A creature's mana value is determined solely by the mana symbols printed in its upper right corner (unless that creature is the back face of a double-faced card, is a melded permanent, or is copying something else
The only problem is that the populate effect goes on the stack first if you cast a spell that makes a token, so its better to cast this after you already have some tokens
I pass the turn, planning to Abrade my opponents Goblin Rabblemaster on their main phase, to give me more time to find a creature for Sneak Attack