This is Exodia simulator, a game which has you trying to collect all
5 unique pieces of Exodia The Forbidden One from the Yu-Gi-Oh! card game.
The basic rules are that you start off with 5 cards and you are trying
to collect the 5 pieces of Exodia using your two spell cards
Pot of Greed and Graceful Charity.
Pot of Greed: Draw 2 cards
Graceful Charity: Draw 3 cards, then discard the first 2 cards
(Don't worry you have an unlimited card deck so you can't run out of
cards to draw.)
Images for the cards taken from https://yugioh.fandom.com/wiki/Yu-Gi-Oh!_Wikia