Dimir Control Combo with Mind Spring for Standard

These cards all focus on drawing cards and filtering through your deck. 'Opt' allows you to scry and draw, 'Think Twice' lets you draw and then can be cast again from the graveyard, 'Chart a Course' helps you draw two cards if you control a creature, 'Another Chance' provides a way to recur your draw spells, and 'Mind Spring' can draw a significant number of cards based on the mana you invest. Together, they create a powerful draw engine, ensuring you have options in hand.

These cards work well together in a control strategy. 'Duress' allows you to disrupt your opponent's hand by forcing them to discard noncreature spells, while 'Cerebral Confiscation' can steal a card from your opponent's hand. 'Insatiable Avarice' benefits from the opponent's lack of resources by drawing you cards whenever you cast spells, further enhancing your control strategy.

This combination focuses on life gain and card advantage. 'Lively Dirge' gives you life and can return creatures, while 'Insatiable Avarice' benefits from the life gained by providing card draw. 'Cerebral Confiscation' allows you to control your opponent's hand while you build your advantage. This synergy creates a loop of gaining life and drawing cards to maintain your board presence.

These spells work together to create a draw engine that can take advantage of the graveyard. 'Quick Study' allows you to draw a card and can be used multiple times. 'Ancestral Reminiscence' can return cards from your graveyard to your hand, while 'Mind Spring' provides a large draw when needed. This creates a cycle of drawing, utilizing, and recurring cards for sustained pressure.

These lands provide the necessary mana fixing for a blue-black control deck. 'Watery Grave' enters the battlefield tapped unless you pay life, allowing for a strong start. 'Island' and 'Swamp' ensure you have the appropriate colors for casting your spells, facilitating the use of spells mentioned in previous synergies. This mana base supports a strategy that relies on spells from both colors.