If you trust your hands rather than an algorithm and have no problems taking time to shuffle while impacting game time, then MTG paper is the way to go
Summoning monsters and drawing as many cards as possible to keep the fight going is part of the fun
A free, desktop tool called Arena Tutor tracks your Arena collection, let you know if you've got 100% of a set, and gives you a nice perspective on what you're missing
The competitive deck that has abused the mechanic the most for years is "Zoodiac," who were the strongest deck in the game at one point and are now splashed into the "Tri-Brigade" deck to summon the most powerful Xyz monster in the metagame: "Divine Arsenal AA-Zeus - Sky Thunder." Synchro After Duel Monsters and GX went by, a new summoning mechanic was finally released with 5DS
The hosts of Elder Dragon Hijinks got a sneak peek at the 20 Ways to Win Commander deck with its designer, Magic: The Gathering Senior Game Designer Daniel Holt
Master Duels Solo Mode allows you to learn elements of the game through duel challenges and tutorials, but it also offers lore for a lot of the different archetypes within the card game itself