When a creature you can see makes an attack roll against you, you can take a Reaction to conjure your roulette wheel between yourself and the attacker. You and the attacker each roll a d100. If your roll is equal or higher than that of the attacker, the attack misses, and you can't use this ability again until you finish a Short or Long Rest.
Spinning Shield
Raw data
{
"name": "Spinning Shield",
"level": 10,
"__prop": "subclassFeature",
"header": 2,
"source": "ValdaSpire24Extras",
"entries": [
"When a creature you can see makes an attack roll against you, you can take a {@variantrule Reaction|XPHB} to conjure your roulette wheel between yourself and the attacker. You and the attacker each roll a {@dice d100}. If your roll is equal or higher than that of the attacker, the attack misses, and you can't use this ability again until you finish a {@variantrule Short Rest|XPHB|Short} or {@variantrule Long Rest|XPHB}."
],
"className": "Warmage",
"classSource": "ValdaSpire24",
"subclassSource": "ValdaSpire24Extras",
"subclassShortName": "Roulette"
}