Eventually, the game grew more in popularity as internet became more accessible to people
This means, for example, that you can't target two creatures and assign them two and zero counters respectively
Some combos include: Fling - 2 CMC, Instant, requires the user to sacrifice a creature and then deals damage equal to its power to any target Greater Good - 4 CMC, Enchantment, makes the owner draw cards equal to the power of any creature sacrificed to trigger this effect Goblin Tunneler - 2 CMC, 1/1 Creature, it can be tapped to make target creature with power 2 or less unblockable for the turn, which would apply before combat Escape Tunnel - Land, it can be tapped and sacrificed alongside paying 2 colorless mana to make target creature unblockable for the turn How Final Fantasy's Jumbo Cactuar Breaks Magic: The Gathering There are many possible combos for Jumbo Cactuar to become a broken MTG card
Its probably impossible to calculate how big the market for MTG cards across the world is, but even the bulk value of all cards released in the past 30+ years would point to millions at least
Master set chasers need it