[20] On each player's turn, following a set phase order, they draw a card, tap their lands and other permanents as necessary to gain mana to cast spells, engage their creatures in a single attack round against their opponent who may use their own creatures to block the attack, and then complete other actions with any remaining mana
27-039LVaan It is still possible to play two Backup cards onto the field when you already control four Backup cards, but after doing so the rules will force you to place the extras in the Break Zone so the total does not exceed five
Brainstorm lets you stack the deck so you have exactly the cards you need, precisely when you need them
I could make a very easy and terrible pun here, but Im not going to
Divine Visitation - Turns your token parade into angelic beaters Edgar, Master Machinist Edgar is a recursion engine for artifacts with a sneaky Voltron payoff