The closest thing to a limitation is that it prohibits all non-Pendulum Summoning forms of Special Summons, which is not that bad in a pure Pendulum Deck anyway
Instead, ones with decent creatures on the back face, like Invasion of Dominaria, and Invasion of Tarkir are the way to go
Conclusion While you cant swing your creatures at yourself during combat, there are still plenty of ways to hurt yourself in Magic: The Gathering
Evolution Charm Early Game : Yes Parity : Yes Ahead : Yes Behind : No Any creature-heavy deck running green should give some consideration to Evolution Charm
Cards commonly played in Arcades Defender Tribal include: [c]Huatli, the Suns Heart[/c] [c]Tetsuko Umezawa, Fugitive[/c] [c]Wall of Omens[/c] [c]Brago, King Eternal[/c] [c]Towering Titan[/c] [c]Slaughter the Strong[/c] [c]Charix, the Raging Isle[/c] [c]Wall of Denial[/c] [c]Reveillark[/c] [c]Angelic Chorus[/c] [c]Assault Formation[/c] [c]Wall of Shards[/c] [c]Tree of Redemption[/c] [c]Meekstone[/c] [c]Tower Defense[/c] How to play against Defender Kill the Defender Creatures in Combat Although most defender creatures have very high toughness, they dont have indestructible