You can expect to be able to purchase its products at local game and hobby shops and online retailers
*Buy Blossoming Defense cards on eBay
If you warp it, you get two extra +1/+1 counters, but it costs you another 3 mana to do so
Furthermore, if their trainer knows that their Beheeyem BREAK is about to get knocked out, they can send all the energy attached to them to benched pokemon to prepare for upcoming tactics while also slamming the foe with 100 damage
However, if you were playing Niv-Mizzet Parun as your Commander it is a different story
The nastiest surprise with Chord of Calling is Darien, King of Kjeldor, who can give you a surprise army as you take damage, but Aven Mindcensor has paired with Chord in Modern for years, and an end-step Seedborn Muse is always welcome