Whenever an artifact an opponent controls becomes tapped or an opponent activates an artifact's ability without in its activation cost, you gain 1 life.
The Forest of Argoth has developed a resistance to mechanical intrusion.
Reveal the top card of target opponent's library. If it's a land, you gain 1 life. Then that player shuffles their library.
Draw a card at the beginning of the next turn's upkeep.
Reach (This creature can block creatures with flying.)
Whenever Rashka the Slayer blocks one or more black creatures, Rashka gets +1/+2 until end of turn.
"Rarely be the prey so haughty as to hunt the hunter."
—Baron Sengir
Flying (This creature can't be blocked except by creatures with flying or reach.)
When Rathi Dragon enters the battlefield, sacrifice it unless you sacrifice two Mountains.
Enchant artifact an opponent controls
Whenever enchanted artifact becomes tapped, choose one —
• Relic Bind deals 1 damage to target player or planeswalker.
• Target player gains 1 life.
, : Target attacking creature gets +2/+0 until end of turn. When that creature leaves the battlefield this turn, sacrifice Runesword. If the creature deals damage to a creature this turn, the creature dealt damage can't be regenerated this turn. If a creature dealt damage by the targeted creature would die this turn, exile that creature instead.
, : Exile target creature you control.
At the beginning of your upkeep, you may sacrifice Safe Haven. If you do, return each card exiled with Safe Haven to the battlefield under its owner's control.
Flying
Whenever a creature dealt damage by Seraph this turn dies, put that card onto the battlefield under your control at the beginning of the next end step. Sacrifice the creature when you lose control of Seraph.
When Shichifukujin Dragon comes into play, put seven +1/+1 counters on it.
, Sacrifice two +1/+1 counters: Put three +1/+1 counters on Shichifukujin Dragon at end of turn. Play this ability as a sorcery.