mtg cards with channel Magic The Gathering Fate Reforged Single Card Uncommon Harm 7 add 1 to your mana pool. Channel MTG - Fourth Edition

Long Feng, Grand Secretariat Long Feng, Grand Secretariat has potential specifically as a combo commander

Fling then deals damage equal to that creatures power to any target

Still, there are plenty of ways to stuff cards on the bottom of your library in Commander, especially in her blue and red colors

If at the beginning of your end step there are more than 8 cards in your graveyard, the enchantment flips and becomes a 4/4 creature with flying and Crew 1, which allows it to become an Artifact creature until end of turn

This naturally affects more players in multiplayer games, but overload also doesnt target, so it gets around hexproof and shroud