Although this only does that once (under normal circumstances) it still taps for one mana the rest of the time which makes it fine
And then when Glissa punches face, you get a Charm to trigger with one of three options - Draw and lose a life, Demystify, or remove three counters from something
There are also two absolutely outstanding uncommons with the mechanic that are among the sets best non-rares (Samurai's Katana and Dragoon's Lance)
The one nice thing about them is the ability to play a little lighter on lands and still consistently make land drops
Your opponent wont have as much information as you have, and they tend to assume that youd put your artifacts in play as soon as you draw them, so if they only count seven poison damage via Ravager and Inkmoth and tap out assuming theyre safe, you can surprise them by going Darksteel Citadel, Springleaf Drum, Ornithopter to make it ten