The artwork is fun enough as you see this giant-beaked turtle about to chomp down on the luckless axe-wielding guy, but I love the flavour of it essentially 'retreating into its shell', represented by refusing to attack if it had to block the previous turn
Limitations Card Conduits 10% fee plus the per-card charge can add up, especially if your collection contains mostly bulk or low-value cards
Now you do need to have a location in your hand for his effect to do anything, but with some smart mulliganing and/or a good amount of draw, that should be consistently achievable on curve
Since Simic (green/blue) colors have plenty of ways to pump the stats of your creatures, this makes reaching ten damage in just one turn trivial, thanks to all the auras and instants it has
Because of this, a lot of them are quite inflated in price and are likely to come down
To make it even better, if its the the second time or more a land has entered under your control, you can flip the cards face-up for free , potentially cheating massive creatures into play way ahead of schedule