The tokens are exact copies of the creature, so they retain its ability to duplicate further, meaning you get exponential growth if you can continue to draw extra cards
Its got an even higher ceiling in Commander, where its not too challenging to find the time to gain enough energy for this to start bringing back huge monsters
Nice synergy with card flow, token making, and creature shooting all happening in three abilities that are not the ultimate
This is widely regarded as the most powerful weapon in the game and has made multiple appearances in the series since
Now let the Minion Reflector triggers resolve on anything where we have no use for multiples (Vedalken Orrery, Phyrexian Altar, Hunted Lammasu, Holistic Wisdom, Mirror Gallery, Nature's Revolt) putting 2^2059 of each of them into play...which is to say 6*2^2059 mana of any colour in our mana pool