While you cant memorise every card, learning the phases of MTG is one of the best ways to improve your skill as a player, helping you to properly plan your turns and know the exact time to drop an instant spell on your opponent to give you the biggest advantage
A lot of Simics strength in Cube comes from blue card draw and green mana ramp being busted, which holds true whether you reach for middle of the pack Simic cards or are going all the way up to nonsense like Uro, Titan of Natures Wrath and Oko, Thief of Crowns
If you are playing a deck that creates a plethora of creatures, Jetmir is a must-include if you can play Naya (red/green/white) colors
Arvad the Cursed Arvad the Cursed is a card I enjoy running in the 99 of legends matter decks
Exquisite Blood is the only card in the game with the opposite effect , allowing you to gain life whenever an opponent loses life
In games where you dont have enough lands or the right colors to cast them, they fix that problem