In response...
It's cheap, but it will reward the player it counters
An Offer you Can't Refuse
The whitest of the Nine; the whitest reducer
+1: Target artifact or creature loses all abilities and becomes a green Elk creature with base power and toughness 3/3.
Oko, Thief of Crowns
Named for its haymaker, this strategy aimed to wield a titanic force to fetch untapped lands en masse
Amulet Titan
Quick! Bolt it!
Birds of Paradise
DAILY DOUBLE
Dovin's Veto
Forestwalk's friend; A ramping draw
Yavimaya, Cradle of Growth Spiral
DAILY DOUBLE
Grist, the Plague Swarm
Named for what it lacks, this deck aims for a consistent first turn kill
Oops! All Spells!
Ssssssso much mana!
Fanatic of Rhonas
Not as used as its fellow feathery counter, this counterspell also leaves behind a friend.
Strix Serenade
The most heinous board wipe; an on-rate theft
Blasphemous Act of Treason
0: Add {C}{C}{C}
Ugin, Eye of the Storm
Named for its finisher, this deck aimed to deck the opponent out with nearly infinite card draw
Turbo Genius
Usually played for its back side, this creature gives all your other legends its abilities.
Esika, God of the Tree
It adds another mana to Counterspell, but it makes up for it with two extra modes for you to use
Archmage's Charm
Effective graveyard hate; A ritual on a stick
Bojuka Bog Witch
−2: When you next cast an instant or sorcery spell this turn, copy that spell. You may choose new targets for the copy.
Ral, Storm Conduit
Named for its key card, this deck aimed to outmuscle every opponent with a nearly endless chain of copies
Splinter Twin
This little fellow can give you both mana and grow itself. It can even bring its kid along!
Tender Wildguide
A great titan, this massive creature can counter anything... if you've got the right card in hand
Kozilek, the Great Distortion
A Power-ful Hideaway; a Gaak's combo piece
Mosswort Bridge from Below
−7: Target artifact you control becomes a 9/9 Construct artifact creature and gains vigilance, indestructible, and “This creature can’t be blocked.”
Vronos, Masked Inquisitor
Named for its handripping and damaging headliners, this deck aimed to circumvent casting costs any way it could
Rakdos Scam
This rat will jump and help you armor up! Unfortunately, that's about all they can do.
Freya Crescent