If you're lucky, or just planned ahead, you may cloak a card that has another ability to turn it face up, such as morph or disguise
Imagine I cycle [c]Avian Oddity[/c]
The rippling water, the happy motion, the crisp blues it feels alive
Cards in your sideboard can sometimes be accessed during the game, including game one, by using mechanics which search for them outside the game such as Learn
Instead, MTG players have taken to using Faces of the Past alongside Ashling, the Limitless
(A creature with trample can deal excess combat damage to the player or planeswalker it's attacking.) Enchantment Color tag templates(None) Siege Behemoth Hexproof As long as this creature is attacking, for each creature you control, you may have that creature assign its combat damage as though it weren't blocked