Its had discard effects for opponents, and it eventually developed a minor theme around self-discard thanks to that and madness
Abilities that apply "as [this creature] enters the battlefield" are also replacement effects and can't be targeted
Toll of the Invasion Voodoo | Mirage Block Constructed| Mark Justice, 2nd Place Pro Tour Paris 1997 Creatures (15) 3 Shadow Guildmage 4 Fallen Askari 4 Talruum Minotaur 4 Viashino Sandstalker Instants (9) 1 Kaervek's Spite 4 Fireblast 4 Incinerate Sorceries (9) 1 Hammer of Bogardan 1 Stupor 3 Kaervek's Torch 4 Coercion Enchantments (1) 1 Necromancy Artifacts (1) 1 Snake Basket Lands (25) 10 Mountain 8 Swamp 1 Undiscovered Paradise 2 Quicksand 4 Rocky Tar Pit Sideboard (15) 3 Stupor 1 Necromancy 1 Elkin Lair 3 Funeral Charm 4 Nekrataal 3 Torrent of Lava Now granted this was twenty-two years ago, but Mark Justice finished second in the first foreign Pro Tour ever with four copies of Coercion in the main of his Rakdos "Voodoo" deck
Whenever youre doing ninjutsu things, or blinking, you get to scry and grow the turtle
Thankfully, Boros is chock-full of creatures with haste and flying the Cool Kids so it should be pretty easily to achieve 100% cool on a regular
Vivi Ornitier Boosts spell-heavy decks with bonus mana Tough enough to hold its own Good to pair with 'storm' effects Vivi Ortnitier is a powerful card that obviously lends itself well to inclusion in spell-slinger decks