Nocturno of Myra's Marvels

As Nocturno of Myra's Marvels enters the battlefield, choose a word with five or more letters.
Whenever you cast a spell with the chosen word in its rules text, you draw a card and you lose 2 life.
Partner (You can have two commanders if both have partner.)

Fluros of Myra's Marvels

As Fluros of Myra's Marvels enters the battlefield, choose a number greater than 0.
Whenever you cast a spell with power, toughness, or loyalty equal to the chosen number, target artifact or creature becomes an artifact creature with base power and toughness X/X until end of turn, where X is the chosen number.
Partner