PTCGO is far from perfect itself, but in my opinion the game looks better, has smoother and more responsive gameplay, and includes more game modes like Events and Expanded
Persistent Constrictor Duskmourn: House of Horror Commander gave us this slippery -1/-1 counter card
There are 119 multicolour cards: 28 Selesnya (white/green) 22 Boros (white/red) 19 Azorius (white/blue) 15 Orzhov (white/black) Eight Naya (red/green/white), and Mardu (red/white/black) Seven Bant (green/white/blue) Five Jund (black/red/green) Three Gruul (red/green), Abzan (white/black/green), and WUBRG (white, blue, black, red, green) Two Esper (white/blue/black), and Jeskai (red/white/blue)
On the other hand, a duelist will have to consider each card's strengths and weaknesses to build synergy with their deck
Both the front and back sides rely on enchantment synergy for normal operation, so I would like to actively adopt enchantments that reach a practical level