More often than not though, a blue filter effect will have the draw be equal to or larger than the discard

Acclaimed Contender Accorder Paladin Adelbert Steiner Adeline, Resplendent Cathar Adeline, Resplendent Cathar Adriana, Captain of the Guard Adun Oakenshield Agatha's Champion Agent of Stromgald Alaborn Cavalier Alaborn Veteran Angelfire Crusader Ardenvale Paladin Ardenvale Tactician Argivian Cavalier Armored Skyhunter Armored Wolf-Rider Armory Paladin Arna Kennerd, Skycaptain Arrogant Bloodlord Arthur, Marigold Knight Arvad the Cursed Aryel, Knight of Windgrace Ashenmoor Liege Attended Knight Ayara's Oathsworn Aysen Crusader Azorius Knight-Arbiter Azorius Skyguard Balan, Wandering Knight Bartolom del Presidio Basri's Lieutenant Basri, Tomorrow's Champion Battle Angels of Tyr Beastrider Vanguard Belle of the Brawl Benalish Cavalry Benalish Honor Guard Benalish Knight Benalish Lancer Benalish Marshal Besotted Knight Black Knight Blacklance Paragon Blazing Blade Askari Blood Knight Blood-Cursed Knight Bloodcrazed Paladin Bloodcrusher of Khorne Bloodsworn Knight Bloodsworn Steward Bloodthirsty Conqueror Boartusk Liege Bogardan Lancer Bold Impaler Border Guardian Breathless Knight Bristlebane Outrider Broodguard Elite Burning Shield Askari Burning Sun Cavalry Burning-Yard Trainer Cabal Paladin Cadaverous Knight Candlelit Cavalry Capashen Knight Capashen Templar Caradora, Heart of Alacria Caravan Escort Cavalier of Dawn Cavalier of Flame Cavalier of Gales

Garruks +1 allows you to give a creature +3/+3 and trample until end of turn
Often, a card is graded too high because the seller hopes to get more money for it
Heres another that works, other than the obvious joke Rocket-Powered Turbo Slug is fine
Speaking of winning games EVEN MORE NAHIRI MATH Part of the importance of maximizing the math of swinging early with Living Weapons and low drop Creatures is to get the engine going before people start deploying too many 2/4s or 4/4s