My humble opinion is that they are the good stuff
This compact, no-installation-required system features a 7-stage filtration process that removes up to 99.99% of contaminants
$1.79 Vaan, Street Thief (0390 - Borderless) Final Fantasy Variants $0.39 Crystal Fragments (0357 - Borderless) Final Fantasy Variants $0.35 Prompto Argentum (0387 - Borderless) Final Fantasy Variants $0.35 Summon: Esper Ramuh (0367 - Borderless) Final Fantasy Variants $3.99 Squall, SeeD Mercenary (0402 - Borderless) Final Fantasy Variants $2.49 Noctis, Prince of Lucis (0401 - Borderless) Final Fantasy Variants $3.49 Cecil, Dark Knight (0380 - Borderless) Final Fantasy Variants $0.49 Vanille, Cheerful l'Cie (0392 - Borderless) Final Fantasy Variants $2.99 Hope Estheim (0396 - Borderless) Final Fantasy Variants $1.29 Seifer Almasy (0389 - Borderless) Final Fantasy Variants $0.35 Zidane, Tantalus Thief (0405 - Borderless) Final Fantasy Variants $2.29 Ardyn, the Usurper (0379 - Borderless) Final Fantasy Variants 0 results found

Of course, the only real way to deal with Progenitus is with a board wipe of some kind, but, even then, if it goes into the graveyard you just shuffle it back into your deck
On the old stuff, the most distinguishable sign is the light test, Rudy, who dispenses financial advice on buying Magic cards on his YouTube Channel Alpha Investments LLC, told me over the phone