It is for good reason, as forcing everyone in a match to need to play a subgame in their Magic game is going to add a ton of time to the match
Sportzor is a part of Kelz0r.dk

0.2%inclusion 10.7K decks 4.38M decks Quickbeam, Upstart Ent 0.2%inclusion 10.6K decks 4.35M decks Quarrel's End 0.2%inclusion 10.6K decks 4.70M decks Uglk of the White Hand 0.5%inclusion 10.5K decks 2.19M decks Gorbag of Minas Morgul 0.2%inclusion 10.4K decks 4.79M decks Gimli's Fury 0.2%inclusion 10.4K decks 4.70M decks Gimli's Axe 0.2%inclusion 10.3K decks 4.70M decks Uruk-hai Berserker 0.2%inclusion 10.3K decks 4.79M decks Bitter Downfall 0.2%inclusion 10.2K decks 4.79M decks Lost to Legend 0.2%inclusion 10.2K decks 4.38M decks Stern Scolding 0.2%inclusion 10.2K decks 4.65M decks Shadow Summoning 0.5%inclusion 10K decks 2.14M decks Faramir, Field Commander 0.2%inclusion 9.96K decks 4.38M decks Surrounded by Orcs 0.2%inclusion 9.60K decks 4.65M decks Gollum's Bite 0.2%inclusion 9.49K decks 4.79M decks Legolas, Master Archer 0.2%inclusion 9.49K decks 4.35M decks Sauron, the Lidless Eye 0.4%inclusion 9.20K decks 2.19M decks Aragorn, Company Leader 0.5%inclusion 9.03K decks 1.99M decks Gandalf, White Rider 0.2%inclusion 8.77K decks 4.38M decks Old Man Willow 0.4%inclusion 8.57K decks 2.02M decks Ent's Fury 0.2%inclusion 8.54K decks 4.35M decks Council's Deliberation 0.2%inclusion 8.41K decks 4.65M decks Eagle of Deliverance 0.2%inclusion 8.35K decks 4.38M decks Breaking of the Fellowship 0.2%inclusion 8.32K decks 4.70M decks Shortcut to Mushrooms 0.2%inclusion 8.31K decks 4.35M decks Mushroom Watchdogs 0.2%inclusion 8.31K decks 4.35M decks Oath of the Grey Host 0.2%inclusion 7.98K decks 4.79M decks Tom Bombadil 1.2%inclusion 7.73K decks 635K decks Now for Wrath, Now for Ruin

This provides flexibility on how to engage with the game and makes it easy for friends to form their own small playgroups instead of relying on local events
There are exceptions to this rule, but for the purposes of our explanation, we'll write those off (if a card has neither a weakness nor a resistance, it's not exactly good for explaining the concept!)
Now let's turn to synergies