Basically, if you combine Gatta and Luzzu with any counter multiplying effect (Vorinclex and Doubling Season work too, for example) and any creature who can remove counters for free to do damage (Triskelion works too), you can get a combo win out of nowhere, and at Instant speed
The next day, you'd face Frenetic Efreets that were downright immortal as you burned through card after card trying to make them go away
Its a great card, but its usually utilized in formats that arent centered around creature combat
Enduring Vitality even protects itself from single target removal and board wipes by returning to the battlefield after it is destroyed and turning into an enchantment
Here, Rafiki is outlined with the purple color of Amethyst ink, but the whites added to the card help add the ethereal feeling that it deserves
Fun Ranking: Want To Build Kianne, Corrupted Memory This is the alternate Simic commander that cares about drawing cards