I decided to add it because taking an extra turn and annihilator is nasty, and that's made this one of the marquee creatures to cheat into play, but I still think Sneak Attack and friends are the real offenders
Starting from a price point of $0.19, the spike has only been to $3.72
Auron, Venerated Guardian Brothers Yamazaki Chishiro, the Shattered Blade Colleen Wing, Street Samurai Cyan, Vengeful Samurai Fumiko the Lowblood Gilgamesh, Master-at-Arms Goro-Goro, Disciple of Ryusei Heiko Yamazaki, the General Iizuka the Ruthless Isao, Enlightened Bushi Isshin, Two Heavens as One Isshin, Two Heavens as One Kentaro, the Smiling Cat Konda, Lord of Eiganjo Kosei, Penitent Warlord Leonardo, Sewer Samurai Nagao, Bound by Honor Norika Yamazaki, the Poet Opal-Eye, Konda's Yojimbo Raiyuu, Storm's Edge Risona, Asari Commander Sensei Golden-Tail Takeno, Samurai General Tetsuo, Imperial Champion The Wandering Rescuer Toshiro Umezawa
SOMETIMES, YOU GOTTA ADD COLORS AND POWER UP While the previous two sections discussed narrowing a focus and powering down by removing colors, some decks actually benefit from going in the opposite direction
You get the efficient power and control of Counterspell alongside a huge burst of mana with Mana Drain, the best blue instant outside of the Power Nine
In Green, you could also look at Dosan, the Falling Leaf