Fateful Tempest is so neat
Surge #18 - Misty #19 - The Rocket's Trap #20 - Brock's Golem #21 - Brock's Onix (lv 30) #22 - Brock's Rhyhorn (lv25) #23 - Brock's Sandslash #24 - Brock's Zubat (lv 5) #25 - Erika's Clefairy #26 - Erika's Victreebel #27 - Lt
While both of these mechanics do feature a handful of interesting options, I think that the majority of them will ultimately have the same outcome
While Goring Ceratops will have to attack to enable this effect, and it only last until the end of turn, its nevertheless utterly devastating
It has one card I have finally banned, as with '98, that being Grim Monolith
Though you might be able to get by with Arcane Sanctum instead of Glacial Fortress in your UW deck doing so is one more obstacle in your path, and winning 7 or 8 rounds of swiss in a row followed by a top 8 is hard enough without extra obstacles