Strengths and Weaknesses This deck is very focused on what it wants to do
Blue Colossal Whale Weve got enough finishers in the six-plus mana range (counting Aetherling as either a six- or seven-drop), and all of the ones available are better than the Whale, which provides no immediate value and doesnt do that much even if it attacks for a turn or two without dying
Second, this MTG set has a relatively small number of cards that have a prayer in Modern, even though the set is legal in that Magic format
Three power with double strike is hard to block profitably, but your opponent has to block it to prevent the combat damage trigger
If youve got a board developed enough for the Overrun effect to finish an opponent, youve likely got sufficient board presence to keep Garruk defended
Lastly, while it won't keep this thing on the battlefield for long, when a salty opponent does remove it they'll lose five life for their effort