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This means that your opponent is free to counter it

Giving your opponents access to an extra 2-4 mana during their second main phase can definitely be problematic if your opponent is holding a powerful card or two, but in exchange, you can snag 4-6 each turn, as no mana is given out when you lose life

This is inconsequential most of the time, but Teferi, Master of Time is a popular planeswalker that can activate his abilities outside of normal timing restrictions

Duplicants trigger exiles a card face up

The development of MTGA is constantly evolving to meet the player base expectation and has grown a lot since the early BETA