mtg poison deck commander Karumonix, Rat King TOXIC RAT Tribal Magic Custom – CommanderComplete Reach (This creature can block creatures with flying.) Deathtouch (Any amount of damage this deals to a creature is enough to destroy it.) Whenever another creature dies Fynn, The Fangbearer INFECT /

Its evident by Daxoss ability that you want to gain life by playing creatures, and theres no better way of doing that than by playing creatures that mimic this ability

Snapcaster Mage 4.6 Power 4.7 Support 4.6 This guy is the best card printed for cube for quite a while

The main concept are both the introduction of something that modern MTG players would take for granted -- the first being multi-coloured cards , cards which require multiple different colours to summon

For Limited in generaland this is just a guidelineI'd look to play something like this: 1 mana: 02 2 mana: 46 3 mana: 35 4 mana: 24 5 mana 13 6+ mana: 02 Once you have those figured out, go ahead and add in your noncreature spells