The full breakdown of how Songs interact with these archetypes is in the Songs mechanic guide (linked below in Related Reading), worth reading if Amber-heavy decks are your lane
The +1/+1 buff is not going to be that much of a game changer, but its offset by the swords low 2-mana cost and equip
Of course, the power level of Modern relative to Commander makes this a bold claim, but the possibility is there for a few standout additions
Even if Magda is not your Commander, and even if your deck is not focused around Dwarves, Magda is still strong enough in Commander decks that care about Treasures
Card Draw With access to blue mana, Dimir has no problem casting Factor or Fiction , Deep Analysis , or the dreaded Rhystic Study , while black provides Phyrexian Arena , Night's Whisper , and Necropotence