An extra body is never a bad thing, especially in a lot of black builds that use sacrifice mechanics
Her abilities give her the excellent damage output that helps elevate a number of cards in the Steel deck
Even though your trampler cant kill the creature itself, it only needs to assign what needs to be lethal damage before assigning the excess to the defending player
1G: You may return another creature you control to its owner's hand
It can even be very good against one of the best tier 1 decks in the format, UR Murktide, as it shrinks Dragons Rage Channeler, survives Lightning Bolt and removes cards to prevent Murktide Regent getting delved in at a discount
Creature Artifact - Golem Color tag templates(None) Spark Double You may have this creature enter as a copy of a creature or planeswalker you control, except it enters with an additional +1/+1 counter on it if it's a creature, it enters with an additional loyalty counter on it if it's a planeswalker, and it isn't legendary