Mammoth Bellow
50PlayableSorcery
Tarkir: Dragonstorm
2HG Rating
50/100
Plays about the same in 2HG as it does in any other format.
No 2HG-specific rules fire on this card — it plays much the same here as anywhere else.
Ratings start at a neutral 50 and are adjusted by rules derived from 2HG's structure — shared 60 life, shared turns, two opponents. They'll be recalibrated against real play rates once teams start submitting decklists.
Oracle text
Create a 5/5 green Elephant creature token.
Harmonize 
(You may cast this card from your graveyard for its harmonize cost. You may tap a creature you control to reduce that cost by 
, where X is its power. Then exile this spell.)
Legality
Plays well beside it
Fits the same colour identity — good candidates for your teammate's deck.
Suggestions are characteristic-based for now. Once teams submit pairings, this becomes a real co-occurrence score: played in X% of teams whose partner deck runs Mammoth Bellow.