Is there a way for a Monk to have an animal companion?

If you critically hit with the attack part of Green Flame Blade do you roll extra dmg against the 2nd target?

Do you play mutually blind combatants both get disadvantage?

What should a player do if they want to tackle a character?

Does “ensnaring strike” reduce to 0 the movement of a creature using “fly” ?

What does arcane eye use for detecting hidden creatures/objects/traps?