It is a remand when Remand is backbreaking and it is a more proactive Unsummon the rest of the time
Certainly Sneak Attack is incredibly powerful but much like Mind Twist it is very inconsistent power
For four mana, Radagast, honestly, seems very powerful
Here is the philosophy right off the official Commander site
For Standard, they just printed this combo kill Sanguine Bond as Enduring Tenacity
This Bloomburrow Animated Army Commander Deck includes 1 deck of 100 Magic cards (3 Traditional Foil cards, 97 nonfoil cards), a 2-card Collector Booster Sample Pack (contains 1 Traditional Foil or nonfoil alt-border card of rarity Rare or higher and 1 Traditional Foil Uncommon card), 10 double-sided tokens, 1 deck box (can hold 100 sleeved cards), 1 Life Wheel, 1 strategy insert, and 1 reference card