Hashaton, Scarab's Fist Yes, you need to ramp in one of the slowest color combinations (Esper ) but that discard just became a free copy of the creature, and possibly improved it as a 4/4
The One Ring [Best Colorless Card for Protection and Card Advantage] The One Ring does two things when it hits the board
Whenever another creature you control with flying enters, Momo gets +1/+1 until end of turn
I think the same could be true for several Modern Masters cards, since nearly every rare and mythic was $15 or higher at one point in their original printings
He didn't like them and felt we should take them out, but Bill and I liked them, so they stayed
As one player takes the initiative, the existing player who has the initiative (if there is one) loses it