A two mana 3/1 with lifelink is something you play 100% of the time, and this has an insane kicker mode in the late game
Any "as [this permanent] enters the battlefield" or "[this permanent] enters the battlefield with" abilities of the copied creature card will also work
Or, you can use a cheaper spell to blink this creature, like Ephemerate, and have more mana to cast the spell you want to copy
If it was a permanent card, put a +1/+1 counter on this permanent
Thats really hard to do when were pumping out literally 25 precons a year, but the energy theme is new for Commander (until Modern Horizons 3 ) and gives some old cards a home
Originally introduced in premier MTG sets, theyre fetchable and highly synergistic with land-based strategies, which allows early access to all required colors in a single land drop