Mithril Coat doesn't enter the battlefield attached to a creature. Instead, the Equipment enters the battlefield and then a triggered ability attaches it to a creature. You may cast Mithril Coat even if you don't control any creatures.
16-06-2023
wotc
Attaching an Equipment with its enters-the-battlefield triggered ability isn't the same as using its equip ability. You don't pay mana for the attachment, and the timing restrictions for equip abilities don't apply.
16-06-2023
wotc
If the target creature becomes an illegal target, the Equipment remains on the battlefield unattached.
Random a card of Magic: The Gathering (MTG), but you can also roll the D20 dice, random a Planeswalker, have fun with the random rules and more.
Igor Krstic2023-11-03
