In a format where everything was speed, speed, speed, Capsize single-handedly allowed blue to stay in the game, and eventually lock it up by returning two lands a turn to a hapless opponent's hand
If you untap with it, you unlock the Mulldrifter half of the card, drawing up to two cards per turn while spitting out extra board presence and Treasure tokens
Dex 50 Cards Most Expensive Mega Dragonite ex $1,028.71 Dragonite V $714.01 Dark Dragonite $500.72 Distribution by Rarity
The game automatically draws for you at the start of your turn, and when you play a card or a move that lets you do so, it highlights which cards are playable from your hand and where they go on the board, which is super helpful when you're just starting
That said, it helps you put stuff into the graveyard to reanimate, so that might be something you want