At the beginning of your second main phase, you draw X cards and lose X life, where X is the number of your opponents who were dealt combat damage by Estinien Varlineau or a Dragon this turn
Some of the white cat commanders have abilities that center on equipment, too
Its a win-win
Single creatures can be devastating as well, like Zetalpa, Primal DawnZetalpa, Primal Dawn when its pumped by Xenagos, God of RevelsXenagos, God of Revels
#5 - Mardu Surge The very first ever Mardu precon, Heavenly Inferno (released before we even had Mardu as a name), was helmed by Kaalia of the VastKaalia of the Vast and featured such hot reprints as Dragon WhelpDragon Whelp
They were also able to connect me with Ryan Miller, one of the co-designers of the game, who was able to answer rules and design questions