While an opponent is choosing targets as part of casting a spell they control or activating an ability they control, that player must choose at least one Flagbearer on the battlefield if able.
At the beginning of each player's upkeep, if there are four or more basic land types among lands that player controls, Mask of Intolerance deals 3 damage to that player.
Kicker and/or (You may pay an additional and/or as you cast this spell.)If Necravolver was kicked with its kicker, it enters with two +1/+1 counters on it and with trample.If Necravolver was kicked with its kicker, it enters with a +1/+1 counter on it and with "Whenever Necravolver deals damage, you gain that much life."
Kicker (You may pay an additional as you cast this spell.)When Desolation Giant enters, destroy all other creatures you control. If it was kicked, destroy all other creatures instead.
Target player exiles all cards from their hand face down. At the beginning of the end step of that player's next turn, that player returns those cards to their hand.
Kicker and/or (You may pay an additional and/or as you cast this spell.)If Cetavolver was kicked with its kicker, it enters with two +1/+1 counters on it and with first strike.If Cetavolver was kicked with its kicker, it enters with a +1/+1 counter on it and with trample.
Enchant creature you controlEnchanted creature is a Flagbearer.While an opponent is choosing targets as part of casting a spell they control or activating an ability they control, that player must choose at least one Flagbearer on the battlefield if able.