Swarmyard a good land for protecting your squirrel commander, while Bloomburrow gave us Oakhollow Village for additional +1/+1 counters and Mudflat Village for some recursion
When you have Virtue of Persistence on the field, youll be in a very good place each turn, though this card will likely be a lightning rod for removal
The return of Icy Manipulator was a boon for Fourth Editions Royal Assassin, as it had its combo back, and the ability to tap and render Meekstones or Winter Orbs effect nullified for your untap phase was widely used
Make a Friend Your Nemesis I'm so glad to see Archenemy back
Sure, it's ground-bound and only hits for two a turn, making it a 10-turn clock, but if your opponent tries to kill it, you can always bounce it back to your hand, spend four more mana to recast your 2/2 ground creature, and start chipping in for two again
Its a good card for its mana cost and can be a fine commander in angel tribal decks or aggressive decks, but thats it