First, just to pick a memorable one, heres the Pro Tour debut of one of the most dominant decks of all-time, Caw-Blade: Creatures (8) Planeswalkers (7) Lands (26) Spells (19) 3 Mana Leak 4 Day of Judgment 4 Spell Pierce 1 Deprive 4 Preordain 1 Stoic Rebuttal 1 Sylvok Lifestaff 1 Sword of Feast and Famine Sideboard While this strategy would eventually bring about the only Standard bannings of basically an entire decade, it wasnt the only deck to perform well at PT Paris
This is because Blue-Eyes has plenty of other cards within the archetype to help it see play
From there, the player can easily pump the creature, gain life (probably the weakest ability), or weaken another creature
Baral, Chief of Compliance, Lyse Hext, and Sage of Beyond can all pay dividends at every stage of the game
However, there are ways to make sure that your deck is always up-to-date and countering every possible threat you may encounter
While you typically only get a bonus for discarding nonlands with connive, Doctor Doom also punishes all of your opponents when you discard a land