The turn after a Wheel usually means a dozen or more points of damage for an unlucky opponent via Lightning Bolt, Goblin Grenade, Ball Lightning, Fireblast, Chain Lightning, and other cheap burn effects
It has been used in Legacy and Vintage to steal opposing Griselbrands and Emrakuls for a very long time
To use a wildcard, clicking the "Craft" button or right-clicking the selected card will allow you to use a wildcard of that card's rarity to add it to your collection
There are many wheel-heavy decks that are looking for any mass card draw, with the foremost being Nekusar, the Mindrazer
This even absorbs an extra point when being trampled and can deal twice the damage back
With up to 100 unique cards in your deck, its important you pick a color or color combo that fits your playstyle and empowers the strategy you find the most rewarding