Stalwart Poro

If you control Volibear at Battlefield A and Charm your opponent's Stalwart Poro onto Battlefield B, you will draw 1 card. If you control Volibear at Battlefield A, and an opponent moves two Stalwart Poros into a showdown at Battlefield B, you will draw 1 card.

383.3.e.1. Such a Triggered Ability will only be performed the specified number of times each turn. If its trigger condition would be fulfilled and it has already been performed that many times, it does not trigger. 383.3.e.2. If the Triggered Ability says "you may" or "they may" as the first part of its effect, its controller has the choice of whether or no