With Modern Horizons sets, Wizards tends to go rather wide in the amount of mechanics utilized and as a result, they don't do so much of one mechanic in large quantities
In other words, if you want to cast a Stonecoil Serpent while controlling Etherium Sculptor, you can cast it for X=1 without paying any mana, X=2 by paying a single mana, etc
What Are Battle Cards in Magic: The Gathering
Prior to the introduction of the Extra Monster Zones, monsters Summoned/Set could be Summoned/Set in any unoccupied Monster Zone on the appropriate player's field
Spikes get the most joy out of winning because the game is in many ways just a vehicle for showing what theyre capable of
Please be careful if you are overly concerned about the condition of the card, as it has been in amateur storage and is over 20 years old