If enough -1/-1 counters are put on a creature you control at the same time to make its toughness 0 or less (or the damage marked on it to be lethal), the number of +1/+1 counters on it before it got any -1/-1 counters will be used to determine how many Mutagen tokens you get
Card Name Mana Cost Type Sorcery Rarity Rare rules Text Target player creates X 2/2 black Zombie creature tokens, then up to one target creature gets -1/-1 until end of turn for each Zombie that player controls
Theres an outside chance he climbs towards $20, but why get greedy
I love the high contrast deep black on white, for a Black Magic card, traditionally made
Incapsula incident ID: 1816000830633149369-525345466164450551
However, if you reliably have access to cards with potent upkeep triggers, it lets you double up on them