Sort Card Type Litten #24Common $0.24 Litten #15Common $0.21 Litten #12Common $0.47 Litten #20Common $0.26 Litten #SM2Promo $3.63 Litten #30Common $0.12 Litten #15Common $0.15 Litten #23None $0.52 Litten #1Common $0.75 Litten #16Common $1.33 Litten #7Common $1.99 Litten #2Common $4.50 Litten - 013/095 #13Common $0.48 Litten - 014/095 #14Common $0.48 Litten - 020/071 #20Common $0.13 Litten - 032/162 #32Common $0.11 Litten - 044 #44Promo $5.54 Litten - 075/071 #75Art Rare $14.83 Litten - 15/25 #15Promo $0.41 Litten - 167/162 #167Illustration Rare $40.94 Litten - 24/149 (Cosmos Holo) #24Promo $3.07 Litten - 24/149 (Water Web Holo) #24Promo $2.10 Litten - 3/12 #3Promo $14.64 Litten - SM02 #SM2Promo $1.88 Litten - SM02 (General Mills Promo) #SM2Promo $2.84 Litten - SM08 #SM8Promo $2.06 Litten - SM23 #SM23Promo $1.89 Litten (26) #26Common $0.29 Litten (27) #27Common $0.36 Litten (Mirror Holofoil) #23None $2.33 Litten - 167/162 #167Illustration Rare $40.94 Litten - 075/071 #75Art Rare $14.83 Litten - 3/12 #3Promo $14.64 Litten - 044 #44Promo $5.54 Litten #2Common $4.50 Litten #SM2Promo $3.63 Litten - 24/149 (Cosmos Holo) #24Promo $3.07 Litten - SM02 (General Mills Promo) #SM2Promo $2.84 Litten (Mirror Holofoil) #23None $2.33 Litten - 24/149 (Water Web Holo) #24Promo $2.10

Both of these are worthy of being a three-mana spell on their own, but having them both on one card makes this a great card against a lot of different decks, and you can play it without worrying about what it is your opponent might be doing
Pull-rate data, grading guides, and strategy notes from the Ripster team
The vigilance is excellent as well since not only does it hang back as a huge blocker, it also opens up little tricks like being able to tap it and sacrifice an artifact after it is declared as attacking in response to its own trigger to give you the necessary energy
You can gift a card to a foe to get a two mana Counterspell like Arcane Denial or Vex, for cheaper
Creature - Human Shaman Color tag templates(None) Heronblade Elite Vigilance Whenever another Human you control enters, put a +1/+1 counter on this creature